Problem: There is no way in AbuseFilter to detect uses of the "thanks" feature. This feature can be abused in order to harass editors. It is possible to mute a spectific account, but when the harasser uses a lot of accounts, the editor targeted by harasser has no other choice than disabling the whole thanks feature.
Proposed solution: Create thanks feature related variables, which could be "thanks sender username" and "thanks recipient username" for example.
Who would benefit: AbuseFilter editors, harassed editors