A non-edit action, such as a page move, is thankable from the history tab, but not from watchlists. I propose adding this ability to watchlists. See screenshots below.
Description
Description
Related Objects
Related Objects
Event Timeline
Comment Actions
Previous work happened in T51541: Add "thanks" links to Special:Watchlist and Special:Contributions; PagerTools would have to be generalized to work on log entries as well. (See also T329580: Improve the PagerTools code.)