What does this even mean?
Beats the heck out of me.
I do do a lot of 'prepper' type searching, which we know that the Administration hates, but like I said, I use a different SE for that kind of stuff.
I can only assume that they suspect you of being some kind of a search bot, making millions of searches a minute, since only this kind of a search would cause them problems. I doubt they would care about the content of the actual search, and wouldn’t try to stop you from making certain types of searches they might disagree with politically. This could be possible if maybe some bug on your computer is doing these random searches without your knowledge.