ترجمة - برتغالية برازيلية-إيطاليّ - obrigada pelos vídeos postados, pois, estou...

"pelos videos postados" is plural, I think it should be "per i video postati" also: "estou gostando muito" should be: "mi piace un sacco"

Yes, you are right, it is plural.
About the other, "mi piace un sacco" and "mi sto divertendo molto" are equivalent: maybe the first is more colloquial...

Thank you, Lilian.

"per il video inviato" > "per i video postati"

I agree with 3mend0 about mi sto divertendo molto. I would keep it, since there isn't much difference in meaning and since this request is "meaning only".

3mend0, adesso puoi correggere il testo, ho annullato la votazione. Appena lo avrai modificato lo accetterò

Fatto!
Ciao