I meant in the context of sharing links, either on a board like this or in a text. But that does bring a up a good point of how many users know how to copy/paste?
Among all internet users, I would conservatively assume 30%+ do. Among people who have posted a link to social media or forums, I would assume %80+. But I'd be interested to see how off I am.
There's a reason there are those share buttons on every website that's chasing viral traffic.
I suspect most people who share on Facebook share via those, or via the Facebook app's own internal web viewer. I would assume Twitter is a bit more savvy, but I still would not bet strongly that a majority of people on Twitter know about copy-paste.
Most users click links.