I created tag synonym suggestions to map the barely used and completely undescribed tags for,of,by,from, with to our tag prepositions. Its description already includes all the words and there is clearly no use for the single tags and the usual prepositions questions encompass questions regarding the other prepositions either way.
The synonyms will be accepted by two up votes on the preposition synonyms page.
EDIT: At the readers who up vote this question. Please head over to the synonyms page and up vote the tag synonyms there as well. ;)
EDIT 2: We did it :)