I’d like to make the modest (I think) feature request to be able to view multiple tags.
I think the way reddit handles this with subreddits would work well:
reddit.com/r/games+gaming combines the
gaming subreddits. This should extend pretty reasonably to lobste.rs tags (ex:
lobste.rs/t/compilers+compsci). Just to be clear, I think this should display the union of the two (or more) tags.