Hello
I would like to recommend the creation of some kind of a warning / instruction for the issue with non "standard" [diatric] signs like "ã", "è" and "ū", that can happen while exporting tags to a file. It would be useful for the inexperienced users. Because if one has tags with signs like that, then after exporting them to a TXT file those signs will get "anglicized" [simplified into "a" "e", "u"]. And in order to prevent that a user would have to first know about existence of signs like that in his / hers tags; and then adding an order for changing the coding to the UTF-8 / UTF-16
And in comparison, if a casual user creates in Windows a new TXT file and put in it a sign like "ã", then when saving it [in also default ASCI] a warning and a short simple instruction will pop out
Such an info about abilities of Unicode [like in Windows] could either pop out at the time of [or after] exporting; or it could be mandatory added to the top of a just craeted list [explaining that some signs were changed and why]
I came up with that idea near the end of a topic dealing with this issue: List of albums