Exactly. My point with Poole is that he started a platform that was much more accepting than competitor sites. Eventually he wasn't happy with how it turned out

Exactly. My point with Poole is that he started a platform that was much more accepting than competitor sites. Eventually he wasn't happy with how it turned out and walked away from it. Easy enough to do when it's a small operation. But with a larger operation like Twitter staff are invested enough that they won't just say "fuck it". So you see stronger TOSes build up over time.