[flormmm]

I assume (correct me if I'm wrong) its OK for a company to have an employee maintain their Wikipedia page (i.e. the employee is being paid).

What about a contractor? In other words, I'm wondering where the line is on paid editing being a bad thing.

[mikeash]

It's not banned, but it's "strongly discouraged" and any such affiliation must be disclosed:

https://en.wikipedia.org/wiki/Wikipedia:Conflict_of_interest...