The major issue I see here is that someone can upload and make you share a copyrighted material. It could cost you lots of money. I wouldn't be surprised if it will be abused...
I use regularly English, German and Romanian. I find it easier to learn using the two extra standard layouts (not the programmer version) and change between them by ALT-SHIFT than pressing ALT-X for every diacritic. The WPM count falls drastically using the ALT key all the time.