Whence, hence, and thence are much too commonly used

…according to the SDMB search engine! I tried to search the forums for “whence” and was informed that whence was much too commonly used to be a good search term. O RLY?

Whence has that opinion emerged?

How am I supposed to find the forum that discussed the redundancy of “from whence”?

Just search for whenc*

Is this it?