I don’t know if there is a set answer to this, so I’ll offer some deductive reasoning.
When something goes wrong, people like to complain. For Fiverr, that often means posting that complaint here on the forums. It is therefore reasonable to assume that: if editing profiles had a negative impact, people would complain here on the forums. I don’t know of a single case of a complaint of this kind. Therefore, we can logically and reasonably conclude that editing a profile description has no effect, or at least no noticeable negative effect.