Note: This is just from my short experience. I could be wrong on some of these. Just some collections of thoughts from VSBRO. Don't all apply universally, but tried to pick ones that do.

VSBRO was a social app my friends and I made over the past few months. It was made as a spoof of VSCO (we said VSCO but for Bros). We went from 300 user to 20k users in one night and got to 115k in 3 weeks. We were the #3 social app and #21 overall app at our peak plus were featured in Forbes. We ended up shutting the app down because it was fostering a very nasty and sexist community — one that we never intended.