I've been writing most of my life but pretty much kept it to myself, even though I wanted to publish. In 2013 I somehow managed to find Writing.com and joined, and frankly since then I've let writing be my life (when I'm not working, of course).
For the first time I had fellow writers to talk to, including about non-standard genres, I found friends, and I got my work critiqued. I felt re-enthused about my writing and felt validated that writing isn't a stupid past-time. I run contests myself and judge and review others and so have broadened by whole writing horizon. I even write short stories which weren't in my vocab before!
Writing.com saved my writing life and I will never regret joining (or paying for a membership). I'm publishing my first novel this June and I'm happy to credit the community at writing.com - the professionals, staff, and total amateurs - for helping me get there.
Notwithstanding the actual writing side, the site's easy and fun to use, and the staff a great to deal with and listen to user issues, complaints and wish lists.