Currently, the WikiLove extension adds a user preference under the "Misc" tab:
- Enable showing appreciation for other users with the WikiLove tab
My personal feeling is that the heart icon is small enough by default (i.e., in Vector) to not be worth the additional code complexity and user interface clutter that a user preference requires. And in Monobook, users are used to a large number of tabs and they can easily hide this tab on a per-user basis if necessary. I'd favor removing (instead of moving) the user preference, but either solution is acceptable to resolving this bug.
Gathering stats on the user preference's usage may be worthwhile.