The first answer to Why is my car hard to start only after a few hours? starts off with:
ND (DENSO) spark plugs Suh HUH HUCK & NGK is great.
To my eye that's unnecessarily crude and lacks backup… But, on the other hand, there are no spark plugs in my world these days and maybe ND plugs aren't all that great… So as I was trying to clean up the answer, I was torn about what to do. The options seemed to be:
Flag the post as offensive.
Convert the statement into a more polite one "I don't like ND plugs, I think NGK makes better ones."
Delete the comment all together, or
Ask the OP to back up the assertion.
I ended up deciding on the last option since it kept the others open and didn't ask one of the moderators to take over the problem. But I'm wondering, what's the best practice here?