I see some bidbots on every post you make, Of course it could be that you do get a free vote from them no way for me to know that.
Most have now turned to curation, that's what you are seeing. It's either they curate or cease to exist. There's few paid votes now.
I don't know, like I said if you look at @freedom he is still getting a lot of rewards from bid bot delegations, in fact more than before and that is not even including OCDB.