I've been here for 6 years
Doing what for 6 years ?? Not much, that's the point. Your "tg16mania" isn't all that evident and watching/lurking is not much of a contribution as others pointed out... Moreover, it looks tacky to suddenly get active for a raffle, one of the best at that, then try to somehow define seniority just by how long your account's been registered, basically hoping that lets you weasal in...
Let's say you were allowed in and you won, you walk away with it, go back to your lurking, well, doesn't that defeat the spirit of the purpose of raffles which is to reward active, long-time/frequent contributors to the forum ?? That wouldn't be fair to the people that keep this place active, interesting, above all, alive... Those that provide services, add content to the forum on a frequent basis, you get the idea... I don't think your post frequency is about to change any time soon and it shouldn't just be because of raffles either. Anyway, that's my 2 cents, and I don't mean to be rude, but you clearly don't meet any seniority standard as ambiguous as that might be.