I know this might be a duplicate, but this is really a feature I miss. It would be great if there was an option to enable nice looking permalinks without IDs for threads and categories.
Please see https://community.nodebb.org/topic/11181/how-to-customize-the-url-would-prefer-shorter-url/ as to why it is difficult 
Edit: Oh, I don't really go into detail there -- but nevertheless, slugs aren't unique, so you can have two topics named the same thing. Therefore you need the topid ID to find the topic.
Yeah, I understand - and I really don't want to annoy you with this probably-often-discussed topic.
But wouldn't it be possible to implement it like WordPress does? And you could implement code that could check for identical names of categories/threads and then just add a $CATEGORYNAME-1, then $CATEGORYNAME-2 and so on if the name already exists?
