Are my opponents in live chess always real?

Just play and ẹnoy the games!

I think they are just non English speakers. Many countries have their own writing system other than roman alphabet and their keyboard have more than two languages. When I was a kid I used to make random names by typing words on the English keyboard as if it was a Korean one. For example, if I type '음모론' on the English keyboard, I will get 'dmaahfhs', which only Korean users can recognise.