This question revealed to me a category of tags which serve no purpose, which are useless and ineffective, and which should be destroyed on the spot.
I kindly request that we retag/burninate all of the punctuation tags and blacklist most of them. Punctuation tags are very likely to return (somebody's going to use period again, you just know it), so blacklisting may be necessary.
"This isn't a problem." Isn't it?
period curly-brackets ampersand underscores tilde apostrophe brackets questionmark slash backslash forward-slash comma quotes double-quotes plus minus hyphen parentheses hyphenation colon semicolon dollar-sign braces
can we please kill the punctuation we should blacklist these it would make teh site soooo much better please can we