If it’s on Github doesn’t that make it OS?

No, when talking about open source software, people typically refer to a definition along the lines of the Open Source Initiative’s Open Source Definition. To distinguish this from software that you can only see the source (but don’t have rights to copy and modify it), they’ll use the term Source Available Software.

I don’t really know about the software you guys were talking about, but the repositories I looked at used the MIT license, which is OSI approved. However, that might not be all of the code they use. It’s not uncommon for a company to open source a “base” version, but they deploy a version that’s altered from that (I’ve got no clue whether they do or don’t).

Ctrl-Shift-N restores closed windows

Is there a field in Tinder you can fill out with your job title?

Yes

And I’m asking how Tinder is verifying that.

They’re not. It’s fake

The reason they checked that it started with “Windows 9” was because it worked for “Windows 95” and “Windows 98”

Disturbingly, yes

Yeah, it’s like saying I can “compress” a png of the Mona Lisa to just the string “Mona Lisa” because I have a database of art.