Probably because your original comment sounds like a shitpost. If that’s an authentic problem you have then it sounds like you’ve got malware in your browser, or maybe someone with higher access in your network hierarchy (apartment or university admin) is doing a redirect of some kind, though why to porn i cant imagine so I think we’re back to “malware in the stack”.
So then do you define a company with 400 million annually and over 2K employees as Medium Tech? Because that ain’t no mom-and-pop tech shop seeking to undermine the status quo, that’s got to be in the top 10 companies in that space. Obviously MS and Atlassian are bigger, but gitlab is like number 2 for git!