If there were no online community for fishkeepers, I honestly don't think that I would've found my way back into the hobby.
The internet has given us access to vendors, breeders and hobbyists whose livestock quality is consistently excellent. I feel like now, finally, I can concentrate on paying (or trading) for great quality vs. the "buy 'em all & let God sort 'em out" approach that I had come to believe was the norm.
As far as LFSs go, I only consistently buy livestock from 2 places. Probably 85% of my current collection has come from members or vendors on this site.
I feel that over the years, I've gone out of my way to search out and support good LFSs. I'm afraid I've been let down more often than not. Hopefully there will be 1 or 2 more gems that I can feel good about buying from.