Last two updates:

Update (3.0):
Changelog:
- Fixed crash when trying to reload the plugin after it has been auto updated
- Added a banlist system. Cheaters using prediction hacks and anti-speedhack bypass hacks will be automatically banned if aac_prediction_ban and aac_speedhackbypass_ban are set to 1 (default).
aac_banmethod 0 uses the local banlist, aac_banmethod 1 uses SourceBans.
For the local banlist, the banned cheaters can be seen with aac_showbans, or by opening the aac_banned.txt file in the tf directory.
You can also remove a ban with the aac_removeban command.
- Improved autoshoot detections, they should now be more precise
- Added invalid viewangles detections (still experimental, will only log for now)
- Added aac_logname to change the logfile

Nice job, thanks. I will see if I can provide any sort of feedback soon

nvm

Update (3.03) :
- Fixed crash after auto updating and cvars being reset to default values

This bug will happen again after updating to 3.03, but it won't happen again with futur updates.

Update (3.04) :
- Fixed more cases of viewangles false positives detections
(there's still no auto banning for viewangles detections, and there won't be until I am sure that it works correctly)

Update (3.13):
- Fixed a crash with the banlist
- Added aac_viewangles_ban to ban for invalid viewangles detections (default 1).

That website doesn't load for me.

It works fine here. Could you try again?
If not, I guess it's a problem from your ISP network. You could try with a proxy or VPN.

Update (3.14):
- Fixed players being banned multiple times after an invalid viewangles detection
- Stopped logging again the autotrigger detections on map change for a specific player if his detection count hasn't changed since the previous map

Update (3.15) :
- Fixed some rare viewangles detections being marked as false positives while they weren't, which resulted in some cheaters not being banned

Update (3.16) :
- Fixed a viewangles false positive on some “fun” maps