As an example, let's say I have tag-1 and subtag-1 and subtag-2.
Right now, if I make a thread in tag-1 + subtag-1, the URL of the post will be of the form:
www.example.com/d/###-Discussion-Title/
Instead, could it be:
www.example.com/t/tag-1/subtag-1/d/###-Discussion-Title
And then the URL www.example.com/t/tag-1/subtag-1/ would lead you directly to the subtag-1 page (instead of www.example.com/t/subtag-1 - the problem being sometimes the name of subtag-1 isn't meaningful without the context of tag-1)
The benefits of this are that the URL contains a full description of the general topic + thread topic, which I think would be better for SEO.
I am not sure if with this format it would still be necessary to have the "/t/" and "/d/" in the URLs, but it doesn't seem like they hurt anything.
