Well, I have a pretty good github profile https://github.com/apsdehal but I still had a hard time finding intern this year. So I would say most of the github profile doesn't matter much, but it sure makes you look impressive. Also as far as I have experienced, if you apply in big companies, nothing matters for internship, only thing you should know is competitive programming.

Having a quick scan of your Github profile it looks like a lot of lists or collections of things or forks. I think you may be suffering from information overload as I was unable to find a decent example of code within 30 or so seconds

For a front end web dev that makes sense. If you have been working on e.g. internal tools or some other proprietary stuff for a long time, how are you supposed to prove their existence?

Obviously it doesn't apply to everything. But for something like a public website or mobile app that would be reasonably expected to be easily findable, the fact that it isn't is weird. One project like that makes me wonder what the situation is; several make me suspicious.

For what it's worth, some Googling turned up these links:

http://www.spse-po.sk/web/

https://github.com/mochja/odovzdaj.to

but it shouldn't have been so difficult to find them.

I promise you I can figure out if you can code or not in about 15 minutes. I don't mean cobble together Angular and Bootstrap. I need to figure out if you can actually code and what kind of person you are to work with.

Comments like this make me think that I never want to be interviewed by you. What do you think about going over code that someone has written previously and asking them questions about it? Do you ask the same coding questions every time?

Nope. Why would I ask the same coding questions every time? Nobody has written the same code or worked on exactly the same problems with exactly the same tools during exactly the same time.

I would question you on the specific things YOU wrote and how YOU would solve problems.