remove sites under Frequent Sites
Be able to delete a site under "Frequent Sites" so that it doesn't show up on your calendars or the Frequent Site list.
Totally agree with above. I would get rid of frequent sites altogether and replace it with a more robust 'followed sites' where you can rearrange and prioritise as you see fit. It's just a mess right now
I have the same problem. It is very difficult to work like that. I have 9 sites created of which 3 are good, and the others were just tests. In no page of Microsoft warned that we could not delete them.