This just means, that the issue tracker is primarily for reporting bugs and stuff that is related to the development. There is such a huge amount of issues, that your question may not be noticed by the developers. Additionally questions can usually be answered by other users as well.
These users usually hang around in this forum, which makes it more likely to get an answer here
the issue tracker is primarily for […] stuff that is related to the development. (emphasis mine)
Do you mean stuff that is related to development of PyTorch or does that include stuff that developers might ask while developing with PyTorch?
In my concrete case: I’m working on a framework that builds upon and thus deeply integrates torch. I need support with something that other users of PyTorch most likely cannot answer.