There was not a need to actually work on such a feature probably since most of the TGP/MGP sites in Chameleon Database have just single line descriptions and even sometimes if a multiline form appears at some TGP site - it is still submitted as a single line so it basically makes no difference..
However, if you know about some sites where you can actually submit the description in several lines, you should contact Cham and let them know at
[email protected] so they can possibly include something like this.