People who follow me (and I can't follow back): It would be extremely likely I would follow you back, if I could. Explanation, below. Importantly: PLEASE Message me and tell me about any of your papers I might be interested in. [Now, the explanation:]
Months ago, I chose to follow many people who I thought might be interesting to read (given my interests). Because some software, which monitors how many people a person is following, WAS DOWN, I was allowed to follow many hundreds of people beyond the LIMIT. The result: I am unable to follow anyone else -- for example: perhaps, you; otherwise I would follow those who follow me because I usually share a lot of their interests.
P.S. I tried to find good reasons to UNFOLLOW many of the people I follow, but cannot come up with good reasons to eliminate anywhere near the number I would have to unfollow. Perhaps I will continue to work on this.