I have stumbled upon this thread https://moodle.org/mod/forum/discuss.php?d=255164 and this is exactly what I want to achieve.
Comments are very important and the fact that it is impossible to actually reply to a previous comment is a major downside to my use of the comments block.
Any ideas how @Farhan Karmali was able to achieve this? Can anyone do this or just an administrator?
Is there any other way to allow comments with reply-structure into Moodle activities?