Not sure when this began, but it's fairly recent. I have some fairly popular Collections, and posts there over the past several weeks have been garnering an inordinate amount of nonsense, or one word comments. I had to turn off public commenting because of this. Some posts were getting one word comments like, "Hi", and there were hundreds of them.

I limited commenting to my Circles and that seems to have slowed them down. I tried reporting them in the beginning, but then it just became too much. After Google took away the flag where we could easily make reports from the notifications the process became too tedious.

Now I'm getting many more reshares of my posts where they comment "Hi" in the reshare. I have no idea why they would bother doing this.

Anyone else experience this?