I did not update or change anything in the past few days.

But, now that you mentioned an AI scrapper I looked into the logs and noticed some heavy requests to the API from a specific IP.

Requests look consistent to scraping - just consistently and continuously issuing GET requests to different API endpoints.

XX.XX.XX.XX - - [14/Oct/2025:21:28:54 +0000] "GET /api/v3/community/list?limit=20&sort=TopAll HTTP/2.0" 403 107 "-" "Mlmym"

I have started denying their requests and it is the first thing that seems to have actually helped!

I don't want to speak too early but I think you may have identified the cause. Thanks!