This isn't specific to SF, but it came up recently and it's worth a brief touch point. Recently in the review queue, I stumbled upon the following edit:

Before:

How do you troubleshoot Apache redirects in production? I know there's a a logging feature somewhere that lets you log all the redirects that happen...

After:

How do you troubleshoot Apache redirects on a production server? I know there’s a a logging feature somewhere that lets you log all the redirects that happen…

Aside from changing "in production" to "on a production server", the nuance is easily missed: the ’ and … Unicode characters were swapped into the post, obliterating their inferior ASCII counterparts. The edit comment of Grammar & formatting. suggests that this was a choice of the user, not a word processor.

Should we be performing these types of edits?