Do you guys think MapleStory is FUN?

Ironically its those events that have hurt maplestory the most

I'd say only the ones that force you to log in are the ones that hurt the game. Feeling like you're obligated to log in and 'play' in order to better your character is a not a good design. Stuff like the Valentine's Day events were good for everyone, you could do them pretty casually and get decent rewards or if you had the time/patience you could do them all day and get a ton of stuff out of it. My favourite events are the ones that don't result in any actual advantages to your character though, the Mesoranger DDR was probably my favourite, didn't really get anything out of that aside from entertainment.