Pls come to brasil
I have a PT-BR mirror for my own comic here, but it's really just for sharing purposes outside the internet. It has NOWHERE the amount of likes, views or subs as the english version, and I in fact had plenty of my brazilian friends just sub to the english version instead to push it up. It's nice to have, it helps me practice translations and localizations (and my files are already optimized to have two sets of dialogue), but it's not a significant impact in the audience.
But of course, if you go to cons like I do, it's extremely useful to have it done ahead of time. I can just pull up that version on my phone/printed version and show it to whatever rando comes up to my table, even if they have no experience in webcomics. I'm not traveling to the US anytime soon and don't have enough material to print the first issue, so it's actually the version getting printed first in small batches.