I've been a casual Trek fan since the 80s, watching TOS as late night reruns. For some reason, I skipped DS9 as it was airing. I can only remember watching 4 or so episodes (including the finale, so yeah I got spoiled real quick!)
I played STO in open beta and played retail for a month. Somehow, walking through DS9 and doing the nearby missions resonated with me. I thought it was quite interesting, and I wondered why I never gave the series a chance?
So I acquired season 1, and I was quite impressed. I'm now on season 5 and I'm completely hooked! I feel really bad for avoiding the series for so long, but I can see myself going to forums like this and trying to connect with fellow fans.