I find the course and community very inspiring and would like to say thank you for this rare opportunity. The material is extremely interesting.
But to be honest I find a bit hard / overwhelming to participate actively and even follow all discussions.

The biggest limitation for me seems to be the medium / forum in which the course takes place.
One problem is that within threads all comments are _totally_ ordered - new comments go always to the end. I think having some form of _partial order_ would be very helpful - ability to [recursively] comment on a particular comment. Maybe with more granularity of main threads it will get better.
Another potentially helpful thing could be adding some order by voting on comments - so more helpful stuff would be more visible.

Again these are limitations of the platform itself and definitely I am going to follow the course and hopefully participate more.