BUR #3627 has been approved by @evazion.
create alias putting_on_hat -> putting_on_headwear
The two tags are being used simultaneously when putting on headwear's wiki specifies the use for hats too. Also for consistency with other actions on headwear tags (like adjusting headwear).
EDIT: The bulk update request #3627 (forum #173997) has been approved by @evazion.
Updated by DanbooruBot