More irrelevance.
There would be no reason to quote them, period.
No reason not to either, logically.
choice of who to quote taint them themselves
Genetic fallacy: your "taint" concept is irrational. Again, a quote may be mentioned more for its content than who said it.
Like here: the commenter merely wrote that person is known to have said something relevant to the topic. Instead of addressing the substance of that message they're referring to, responses distract themselves with who said it.
stop quoting fascists if you don’t want people to think you’ve decided to label yourself as a target for righteous violence
ad baculum
Stop pretending your high school debate classes are real life
Start meeting basic standards of logic that don't fail high school?
How about "respect logic"? It's pretty simple.
In Florida, students have this one cool trick to get their teachers fired. Thanks, Florida!
Also, is that government punishing speech?