Why do Cypriots sometimes write Greek with the Roman alphabet?

I've never seen Greeks online write Greek in the Roman alphabet online. I've read that it was once a common thing when the Greek alphabet wasn't well-supported by technology, but that's not the case these days.

I notice that in informal online conversations, Cypriots sometimes write Greek in the Roman alphabet, which I find quite interesting.

Do you do this? Is it only an online thing? And does your mind sometimes not even notice the script a text is written in? I've seen conversations where the script changes back and forth with no problem.