Probably not recommended for larger forums, but..

This is a 2-or-3-step cache rebuild for reactions, depending on how you wish to proceed;

1. Orphans - Only if you tick the checkbox - Deletes reactions from hard-deleted accounts first.
2. Content caches - Always runs - Recalculates reaction_score/reactions/reaction_users on every registered content type.
3. User totals - Always runs - Sweeps every member and recalculates their xf_user.reaction_score, using the exact same repository method XF's own "Rebuild reaction score" option uses.

You never need to separately run XF's built-in option afterwards - step 3 already covers it. Leaving the checkbox unticked skips step 1 and goes straight from content caches to user totals.

To use it: install the add-on, then run via Tools > Rebuild Caches > "Rebuild reaction caches"
Provided at no cost in recognition of admins having to deal with morons inclined to abuse such features.

Télécharger V1.1.1 :