Problem: Somebody made subsequent edits in a single article in a short period of time. I see them in my watchlist and I can add "thanks" for a single edit. But when I open the diff (example), I must first go to history, select one of edits and thank for single edit only.
Proposed solution: For subsequent edits of one user, provide the [thank] link in the diff view.
Who would benefit: Editors and watchlist users
More comments: The notification could read "You received thanks for your edits in <compare link>".