Other comics that have left hiveworks that I know of: Daughter of the Lilies (weird christian fantasy, currently on hiatus) In Blood We Rise (idk, I don't read it, looks like gay vampires)

There was a rumor going around that Hiveworks is having financial issues, linked to a post that was then taken down and vagueposting from the DotL person. When I saw DotL move, I figured it was personal drama, and when I saw the one rumor post get taken down, I figured it was inaccurate to the point of being lawsuit material, but SMBC is kind of a big deal. If the rumor is anything, I wouldn't be surprised if SMBC is causation instead of response though and the SMBC move is driven entirely by the annoying ads / shop issues mentioned in their post. Most webcomics do not make a profit.