Links to tags don't work
It seems that links to tags do not work. If you try to open a link to a tag (example "feature request") in a new browser tab or window, it says "Not found - Sorry, the page you were looking for doesn't exist. You may have mistyped the address or the page may have been moved or deleted.". The link only works if you click it within the same browser tab (try it by directly clicking the tag above). That is a real shame, because it means you cannot share links to tags with anyone.
I don't know if this is happening by accident or design, but I would consider it useful to be able to link to tags.