I work on Emojityper, which started as a silly colab between friends and now has a reasonable number of users, many of whom seem to be my IRL friends and colleagues. It's quite encouraging to get personal feedback.
But it's also grown into a place to showcase interesting web technologies, which is my job, so that's been a great feeling—that I can learn even when I'm doing something purely for fun/personal motivations.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.