a few things already start changing - and that´s great, but a lot of stuff still needs to change.
the way I see it - and I´m not alone with my opinion, more and more island locals, be it ibicencos or expats like me - ibiza simply has reached boiling point with the actual number of tourists that come here. it came creeping from about 2010 onwards, but reached its climax in 2016. it´s only july and august, but it has negative effects all year on the points I list below. as I said, a few of them are already a bit better again (or will get better)
housing market. starting to get better again now (read on for that), but it had become a joke. I know people that now pay double the rent of what they used to pay 5 years ago. with airbnb, bookingdotcom and other portals becoming fashion, just about everyone started to rent out their flats to holidyamakers...leaving the locals without housing. this is one of the examples where the july/august example is obvious: a lot of the flats stay empty for 8-10 months because people can make the same money, mostly even more, in the 2-4 months they rent it out to tourists. the social and medial pressure on this subject became so big so that finally the government changed the rules. they start controlling illegal rentals and fine them and a lot of people have finally come to their senses and stop renting out illegally to holidaymakers. this trend will continue hopefully as more people that still do it illegally get fined. it´s only starting to improve a little now, finally people can at least find flats again (as landlords put them back out on the long term market instead of renting out illegally to holidaymakers). right now they are still FAR too expensive so everyone is hoping more landlords get fined for their wrondoings...this will then result in more flats becoming available and eventually prices will hopefully drop a little.
island saturation (visible on roads, beaches,...). again something that´s 100% obvious in peak season, but has consequences for the rest of the year. as for the beaches, in summer, lots of the beaches are just too full, period. full in a way that a) you can´t find any parking spots and b) you can´t lay your towel anywhere on the beach. that also has problem c) lots of beaches have too much space occupied by sunbeds...another thing that might get a little better now, because, again the social pressure has worked - lots of people have complained (very rightly so) and the san josé government had to react and has now reduced the amount of sunbeds for certain beaches. I mean look at cala bassa...10 years ago it was still a very nice beach which of course got busy in peak season, but you always found a spot there (to both park AND to be on the beach) while now it´s basically turned into one oversized beach club. that again is because the government has been too permissive and basically lets the entrepreneurs do what they want.
as for traffic, the santa eularia - ibiza road has been in a permanent traffic jam for the last two summers...again this is something new. ibiza until 2010 ish didn´t know the word traffic jam (unless for some of the old cocoon afters at s´estanyol, but that´s an entirely different story). parking spaces are hard to find in most places etc. and the thing is - traffic is also higher in winter now as people fly in and drive around for a week searching for places to live...
so as you see, all of the above is connected really. the solution is easy - alone by limiting the amount of tourists a little (I really am not talking about a big decrease), you could immediately get rid of a lot of issues for both tourists as well as locals. I understand tourists are only here for a week or so, but I really think their holiday experience would be better if there were no traffic jams, no overly packed beaches, restaurants where you could get a table even without booking days in advance etc.
anyone that´s ever been over to menorca will confirm they did it much much better. they have been having a cap on tourism for ages (I think since the 70s or 80s?) and it simply works. the island also gets full in peak season, but it´s bearable. plus, they´ve organized it well - if you get to a beach and the parking is full you simply cannot go to the beach that day (unless someone leaves). that might be negative for you in that very moment, but if you are on this very beach in the same moment you are super happy that they don´t allow any more people to park because the beach is just perfectly busy the way it is.
again, I am 100% convinced the island´s economy wouldn´t suffer if we had a little fewer tourists. and then we also wouldn´t need such a ridiculous amount of rental cars, speedboats etc. it´s just a bit too much right now really. that said, everyone that´s been on this forum for a while knows exactly how much I love ibiza. that won´t change - but as you can see, I simply care. I also think that the government should already now force all the rental car companies to ONLY rent out electric cars. ibiza is such a small island, it would be an absolutely perfect place to promote that. ibiza could literally turn into tesla island. and it would have a global impact since ibiza always is in the media. I also think lots of the businesses (hotels, restaurants, even the clubs) could and should do much more to take care about the environment. I still see so much plastic around here it´s frightening.
I know this all might sound a little negative right now and it´s surely not as dramatic as I paint it. but let´s just say that if I ran the island, I´d change quite a few things haha