It's the worst case of recycling one's own posts I have ever seen, in fact it's the first time I'm seeing someone doing something like that.

It's the worst thing someone can do with a campaign manager who trusted them by accepting such people in their managed campaigns.

I hope the campaign manager will take some action against that user and possibility remove him/her from campaign with some warning.

I personally have no rivalry with that user but whatever he/she does isn't right and I believe such type of members should get reported to campaign managers as soon as possible.