Hi!
This is a major problem as it prevents concise URLs for gigantic queries from being linked from other Wikimedia wikis. Has anyone thought of this issue (Stas, Jonas?), in particular: should we ask Meta to remove the domain from the blacklist or potentially consider another URL shortening solution?
Yes, we thought of it (T112715) but since Wikimedia's own URL shortener (T108557) is not up yet, we have to use what is there. If you have an idea of a shortener more suitable than tinyurl.com, we could replace/add it. So far we didn't find a better alternative.