It is a really fragile topic, at least for moldovans and I’d say it is mostly due to ideological reasons. A lot of moldovans do not identify themselves as romanians and this is due to 2 main reasons:

• Lots of them are not romainians, but descendants of relocated russians or other nations from USSR many of which to this date don’t speak a word in Romanian;
• USSR cultivated the idea that Moldovans are not Romaninas and that Moldova was there long before Romania (which is a stupid argument as Romania was formed after uniting multiple historical regions including Moldova);

Out of these reasons Moldova had and has a huge debate over the existence of Moldovan language, just recently the constitution was updated stating that the state official language is Romanian. Within Moldova at this point there is the Moldovan dialect which differs a lot from other Romanian dialects, even the Moldovan dialect from within Romania, where Moldovan dialect has a mixture of russian/ukranian words.

You need some loops to jump through to get there. But that can be achieved for Signal as well, if you check the discussions regarding reproducible builds for Signal’s iOS client, you’ll see that people just decided it is not worth the hassle to push it through.