I looked at this again and found that the two notes requested very often from my #microblogpub are those that I 'pinned' that can be found at /featured.
The rest are paths pointing to information about this side. Maybe it has been some kind of #fedibot?
Here's a #fail2ban config that helped me blocking the IPs:
# cat /etc/fail2ban/filter.d/manual.conf
[Definition]
# cat /etc/fail2ban/jail.d/manual.conf
[manual]
enabled = true
bantime = 14d
This seems to lead to a jail which isn't connected to a logfile and for which manually added IPs stay blocked for 14 days.
To block IPs I used fail2ban-client -vvv set manual banip $IP
which leads to
# fail2ban-client status manual basic
Status for the jail: manual
|- Filter
| |- Currently failed: 0
| |- Total failed: 0
| `- File list:
`- Actions
|- Currently banned: 4
|- Total banned: 4
`- Banned IP list: 34.229.130.24 44.206.236.255 54.164.161.50 3.238.157.198
fail2ban is integrated into my #yunohost and even though it doesn't come with the greatest documentation I'm starting to love it.