As you can easily see when you visit LessWrong.com, the site transfer is complete, and we are now on the new URL. The data import will run for the next few hours, and by tomorrow morning everything should be complete.
Let us know if you run into any problems, find any broken links, or anything of that sort!
I'm assuming this happens when using the pure-markdown editor? If not, consider switching to the pure markdown editor if you haven't already (click 'edit profile'). If so, I agree this is suboptimal but we probably won't get to it for awhile (it involves digging into the gritty details of the markdown/html/draftjs converters)
(Among other things, simply making it so it's _possible_ to use markdown on most text fields such as the User Profile is a fair amount of work that seems more urgent)