We got that resolved. Here was the technical reason:
"It shows the database is running 973 queries per second, which is not normal. Looking into the traffic, I saw many automated bots trying to interact with the site. Some crawl pages constantly, with over 20 requests per second on each URL. Others try to register fake users using temporary emails, then post more than 10 times to get past limits and include links in posts or signatures. These activities are affecting performance and slowing down the site.
I have developed and added extra protections to fight this, including:
- Limiting requests per IP: Any IP making more than 20 requests per minute is blocked until the next minute. Real users do not read 20 pages that fast.
- Blocking link posting by new users: Even after reaching the post count limit, new users must stay active for at least one day before posting links. This stops most bots, who try to spam links right after signing up."