[[Localisation guidelines|Don't customise]]

Hello, adding italics is more like a customisation than a translation.

(If you think that "sites" is a quotation of technical term which should not be translated, the correct process is now to change the English string and enclose it in <kbd></kbd> tags.)

I understand this usage of italics for linguistic purposes (it's the same in many languages), I'm just saying that if a term needs to be quoted as is in all translations then we should alter the English message so that the markup works as needed.

As for loanwords, there is rarely universal agreement so I trust you'll be careful. For Wikibase translations, have you checked wikidata:Wikidata:Glossary/pt? I see the term was translated there: [1].

I did, yes, the entire thing will be consistent when I'm done.

Better be extra careful with the Wikidata terminology though, it's difficult enough on its own. ^^