It's very much in the fuzzy past, but I am pretty sure I got CoH as a Christmas gift end of 2004, and absolutely loved it. Played exclusively on Virtue, and first cape was Titanium Tiger (Katana/Regen Scrapper). Played a ton of alts, and never got any of them above level 30. Absolutely LOVED CoV when it came out, and my main became Savage Instinct (Dark/Regen Brute, reborn as a Savage/Regen Brute in Homecoming). Ended my subscription when I went to college in 2006, though picked it up again over summer holidays a few times and always had a blast. Was keen to dive back in again after I moved to Australia end of 2012, and was gutted to find out the game had just been sunset (seriously, I could not have had worse timing).
I actually found out about Homecoming from a comment on a Youtube video, of all places - was listening to the CoH main theme and saw someone posting that the game was playable again! It was surprisingly but wildly emotional to boot up the game again and walking into Atlas Park for the first time in over a decade - my current main is Motive Power (Energy/Energy Blaspper), and I play on Everlasting with too many alts.
Ironically for a player who solos 99% of the time, I think the thing I love most about the game is the community. There is a special sauce vibe to the way that players in the game interact that I find just delightful. I still remember the high level cape that dumped a bunch of inspiration on an alt of mine just because they liked my backstory and costume. Every time I have teamed it's been a blast, and the fact that the game even still exists at all still warms my heart in a way I find hard to put into words.
City of Heroes is a special game... it has that je ne sais quoi, and it keeps me coming back 21 years later.