Noticed a bunch of my reviews have been downvoted

Hello fellow IMDb users. My user name is kingofdanerds and I am a teenage film fanatic. I review movies in my spare time and I have fun doing so. I don't get too much feedback on my reviews. Until today when I noticed a vast majority of my reviews were all given downvotes (or basically said that they were not helpful). Now, I understand not everyone will find my reviews helpful and that is 100 percent fine with me. But all of this had to have been done between the last time that I checked my page (Tuesday May 11, 2021 around 3:15 EST) and when I logged back on (Wednesday May 12, 2021, 10:00 EST). I am convinced that some troll or bot or whatever is behind this. Has anyone else experienced this issue? Also, while you are all at it, give some of my reviews a glance at. Thanks!