Many people use the pomodoro technique in a social setting. It's what I did in college to finish my master's thesis: I'd group up with a few other people that had their own stuff to work on, we'd sit in the same room, and work while the pomodoro timer was active, and chat during the break times. This site is intended to be a digital version of this that enforces the quiet time while the pomodoro is active.

Working together (even if separately) with other people is highly motivating. I found that I was much less likely to procrastinate this way, kind of how I'm less likely to be reading Hacker News instead of working when my boss is standing behind me than when I'm alone.

Personally I don't think you need a whole separate website for this; a Discord or IRC bot that runs the pomodoro would work just as well.