This happened to me (it seemed). It went on for a year or two. Every question I posted immediately had a down vote or two within seconds. I brought it up to meta and they ganged up on me. Downvoted and closed questions and answers. It felt like the Elon Musk cult. I found others making the criticism including comic panel writers. You can see who closes your question. You can't see who downvotes you. One user kept editing my posts and changing their meaning. Sometimes this user would make improvements fix typos, but a few times he changed the meaning and I reverted it back. He wasn't facing this issue I was. We went back in forth in edits and I mentioned, "Do not edit my posts." Three mods came in and booted me off for 3 day suspension. 

I know we all come from different backgrounds so they feel justified for whatever they do. At the same time some people are not altruistic and petty and they probably were bothering you specifically. My point is, I wanted you to know that it happened to me too. 

Mods are not above reproach. You get a certain rep and it's granted to you whether you're good at it or not. Some mod has a bad day and they take it out on your posts. Until they change some things, documented in numerous posts on meta, it will probably keep happening. 

Having said all that I think it's better than five years ago, but still vulnerable to abuse.