It's a thorn, a letter making a th sound. Still in use in Icelandic, I think. In English, it's archaic at best.

Fun fact, when it fell out of use, the letter Y was used to replace it for a while. So when you see something saying "ye olde", verbally it's still "the old".

I’m probably doing exactly what they want here (e.g. having a conversation about it), but that letter is called “Eth” and was the Old English way of spelling the “th” sound: https://en.wikipedia.org/wiki/Eth

A number of linguistic buffs want to bring it back to the modern English alphabet.

A møøse once bit my sister.

What ð heck are are you talking about, it looks normal. To me. Maybe ðeres someðing wrong wið your computer.

Is there a reason that you use some character (I'm afraid I don't know the name of it) wherever you would otherwise use "th"?

Passive aggressive typing.

Yup, ProtonVPN is free, and there are covert ways to purchase other VPNs (i.e. cash in an envelope).

All this would do is make it much harder for their parents to figure out what their kids are doing. If they can access it w/o a VPN, a regular internet logger can help inform parents of their traffic.

Kids often have no money, especially not money they can spend online, no?

Þkſ m8

It's the original English letter for th which was more or less deleted from the alphabet when imported printing press types lacked said letter.

Before it got universally replaced by th some printers used y like in "ye olde" which is really pronounced "the old"

Hey, you never know, maybe you'll get a response with some recommendations. You miss 100% of the shots you don't take, after all.

How hard up are you for Facebook? Like, there's a technical solution, sure. But a big part of social media's addictive quality is ease of access.

Making access annoying absolutely will curb teen use.