We have been struggling with the existing text editor on the site for quite some time (years actually) since support for it was discontinued. Finally we are rolling out a new and much improved editor, which you will now see when you 'contact user' (through their profile page).
Once we have kicked the tires we will deploy it to the rest of the site. So, in the mean time, please let us know if you have any problems with it..
Thanks for your patience,