They're fine to filter fresh university graduates. But if you have any sort of track record (previous employment/projects you can talk about, active github acc

They're fine to filter fresh university graduates. But if you have any sort of track record (previous employment/projects you can talk about, active github account), they're just insulting. They shouldn't be wasting your time if they could just have a look at the things you accomplished. That there's companies who make all interviewees take them just means there's not enough competent software developers with sufficient self respect to just refuse that kind of nonsense.