The issue with the old phpbb board that it was not very “modern”. With the fixed categories, bad spam recognition, there was quite some effort by administrators to keep the forum organized. That is easier now, however it tends to be a bit messy.
I sometimes find it hard to find things, so when you want to refer to some topic you saw about 3 weeks ago. When you use the tags and the different topics, you get the mess a bit filtered, that can help. But often everything ends up in one box and you have to go through it.
There was already a topic about someone complaining about discourse … just can’t find it 