INTERNECION eh fair, but it's still best to not use all caps, as long as there are ways to emphasize in other ways. (if there aren't ways to emphasize, I usually a d d s p a c e s in between my words, but that's annoying so it's fine if there's no options)
And the controversy
Uh
many words, yes
Oh also also-
Full sentences with all caps are worse than single words with all caps, cuz then you're going to look like you're really pissed off. plus if I were to emphasize an entire sentence, its just kinda... a normal sentence looking different, rather than it actually putting any emphasis in
Though it can work for much shorter sentences
emphasizing long sentences doesn't do much