How to remove one feedback from profile history?

Question

Upwork

I found out that TOP RATED have such a PERK. But here's the question. If I delete it, is it for life, that is, I won’t be able to delete it again? Or let's say in a year this ability is restored? There seems to be an opportunity to do this every 3 months, and every 10 new works
. And will this affect JSS?
I can't understand the meaning of these phrases
JSS Only - Your public work history won't change. Your profile will still show the public feedback rating, comment, and any response.
Hide on Profile – Your public work history will change. We'll hide the feedback rating, comment, and any response from your Work History and replace it with “This feedback has been removed.”
For those who didn't know

Answer 1

you can’t do it often, at least they consider it for seven days,
yes, the life expectancy will increase, it
seems that already on the toaster in the comments they sucked this topic in detail