Because companies often ask for it! They ask for a link to your Github profile or portfolio, making people feel their GH needs to give the best version of them,

Because companies often ask for it! They ask for a link to your Github profile or portfolio, making people feel their GH needs to give the best version of them, and then completely disregard it. if you’re lucky it makes you pass some CV filter but you still need to jump through the rest of their hoops even though they have accepted the evidence that you can program.