I've just made my first attempt at trueing the front and rear wheel of an older road bike that I'm in the process of reviving. I was successful in truing the wheels and am happy about it. Unfortunately I didn't seem to use the right wrench for this (only had two sizes available on a multi-tool...) so I scratched a few nipples. Three nipples are also slightly rounded. I guess this isn't to the point of making future trueing impossible with a decent sized wrench (already ordered) but should I replace the nipples just in case? Some also squeaked when turning so I treated all of them with a drop of chain lube afterwards. Or should I just ride the wheels and see if the nipples hold up?
If that nipple turns out to be in a trouble spot that needs attention again, it's easy to imagine it stripping out all the way and needing to be replaced at that point.
Sometimes when it's mangled like that, there's still a "good" orientation of the wrench that fits nice and snug and if you just use that, you can avoid any more rounding.
Replacing it preemptively now that you've got it trued and rideable probably isn't worth the time.