Probably since it's their equivalent of the latin e? In my understanding the Russian cyrillic e is pronounced "ye", so э is closer to the latin e.Note: I don't speak Russian so anyone with more knowledge feel free to correct me.Also: This is for Russian cyrillic, I believe in Ukrainian cyrillic for instance, it's the other way around, so e is e and э is ye.
Here's a translation for russian readers: ф4ттуБэ7мумт
Why would you use э for e?
Probably since it's their equivalent of the latin e? In my understanding the Russian cyrillic e is pronounced "ye", so э is closer to the latin e.
Note: I don't speak Russian so anyone with more knowledge feel free to correct me.
Also: This is for Russian cyrillic, I believe in Ukrainian cyrillic for instance, it's the other way around, so e is e and э is ye.