Wikipedia's problems stem from a variety of issues, including seriously haphazard ways of determining what results in banning for anything other than absolutely cut and dried stuff. Wikipedia has a lot of different problems. The project succeeds primarily because the problems exist around the edge cases and the vast majority of editing never runs into them.

Didn't mean to imply that Wikipedia's blocking policies constitute a problem. Just that all we need here is the standard 'accounts that post spam will be blocked'. Which seems utterly uncontroversial, and doesn't even need to be made explicit.

Sufficient unto the day is the evil thereof.