Hi, I noticed you've been fixing a lot of "typos" lately that are really just replacing apostrophes with prime marks. Now, there are a lot of places on this site where prime marks are being used instead of apostrophes or quotation marks (including here in this comment I'm writing right now), which is technically incorrect, but not a big enough deal that I've tried fixing them all. BUT my point is that all the ones you've "fixed" were already using correct apostrophes and you un-fixed them by changing them back into prime marks. So... those typos weren't typos, they were correct typography, actually. Just thought you should know.
Source: I'm a graphic designer and I had the whole prime mark thing drilled into me in my college typography classes, lol.