It's a fascinating question, actually considering the past 2 years have been a 'check TFTV occasionally and catch a match here and there' levels of here for me it's a super fitting thread. Why come back? There are so many experiences with other people, places and things that you could be collecting on this planet. Why??
There's nothing like it, that's why.
I've cast big LANs on site, came up from a TF2F community clan member and moved through IM (VG <3), played for the worst team in Invite (Show Me the Monet..), hopefully made a lot of people laugh with my ridiculous casting, made thousands of connections with people all across the world but there's still something left. It's like the game that keeps on giving, I've been watching recent demos/streams now and realizing things are STILL changing, it's never stale. There are so many tactics still that need to be explore and talked about. Add in the fact that there are still people out there who I've known for years but never got to chance to actually befriend and it's whipped up the perfect storm to keep at it.
Priorities still exist, life changes.. in no way can I ever put the hours into play again (no one wants to see a above average medic do dumb shit anyways) but perhaps being able to talk over some mid-fights these next few months? Going to be the absolute best season possible leading up to Episode III. How can you not be fucking hype and have it grab you with both hands and pull you in.