My old person trait is that I think 'ghosting' is completely unacceptable and you owe the other person a face-to-face conversation.
The not being on social media one sucks when dating for sure.
"How do I know you aren't a weirdo, creep, stalker etc?"
"You don't and me having social media wouldn't change that either."
Sure I could play ball and make myself a presence but honestly I'm happy enough being single that I'll gladly dodge any lady who isn't on board with my lack of social media.
Just a shame that in a numbers game that a relatively high proportion choose such a non issue to be a sticking point.