I wondered if pools could have some functionality just to make them better to sort and search.
While "inpool:true + tags" exists, it would be easier to search for a single pool where all the posts share the same tags in common. (i.e. If a pool has "transformation" for each post in the pool, the pool would be tagged "transformation". Thus, you would be redirected directly to the pool instead of the individual posts. It's clearer and easier to find.)
Also adding favorites and votes independent to the posts would make it easier to search for a specific comic in the favorite list. For example, if you don't have the name of the pool, you would have to search a page in your favorite list, and then click the link to the pool. While with a "favorite pool" page you could compact dozens of posts in your favorite list into one.