i dont understand

what does the brazilians have with having their ign in caps or ending with -in or -n

It's how the language works

-in normally means little.

🫵🤡

ending words with "in" means the same that saying "lil" in english
cauanzin = lil cauan

"in" is like "litle" artZIN = litle art

It's an unformal way of saying a name in the diminutive way in portuguese, basically like "lil = little" in english.

aspaszin = lil aspas

about the ''ending with -in'', it's very common here in Brazil to give nicknames puting ''inho'' in the ending, which means something like ''little''. Ex: Cauanzin = little Cauan
''zin'' is a shorter way of saying ''inho''

zin = slang to little

in Brazil when you add ZIN to a word, you are saying its small and cute.
Basically brazilian parents tend to call their children by their name plus IN, because its an endearing way of calling them
similar to honey, sweetie, my dear, etc.
so when players put ZIN on their name, its how their family tend to call them
the english equivalent would be Sweetie Tenz, or Dear Yay, or Cutie S0m

from today onwards, y'all mfs better address me as jawnzin