Larry was essentially inactive* on Wikipedia from 2002 until he started stirring things up last year. Nobody "wanted him gone" - he simply wasn't relevant to the project.

*: Aside from updating his user profile and commenting on talk pages about himself and his projects.

He broke this rule: https://en.wikipedia.org/wiki/Wikipedia:Canvassing

This is fairly straightforward, with the result (blocked from editing) mentioned clearly. It doesn't matter the topic.

Being a cofounder is immaterial.