I don't think it even reached 20 pages, and it started happening repeatedly, less than 20 pages later, when I decided to write about it.
Okay, I understand.
The problem was likely due to attachments, as they also count as separate forum pages, and the limit works on a queue principle: N pages within a minute, and it doesn't reset to 0 every minute.
I've added a new limit for authorized users to eliminate the issue with attachments.
Now, the general rules look like this.
| User Group | Request Limit per Minute (forum pages or attachments) |
| Guests | 60 |
| Authorized Users | 600 |
| Allowed Bots (search engines) | 30 |
| Banned Bots | 0 |