The answer is yes you probably are asking too much! In reality how many members of this forum would actually turn up to a real life spotlight party? Secondly how many regular posters are there in this forum, I'd guess at around 20-30 and that alone hardly makes a good party does it!! Even if everyone brought their mates you wouldnt get much over 100 in my opinion. Also everyone goes to Ibiza at different times and it would be impossible to arrange a time for a spotlight party to take place.
All in all a nice idea but one of those things that could just never happen!!! A meet up would be possible though, but even then it's questionable how many people when it came to the crunch would actually turn up.