I have a LAND there which I can't sell. Because nobody needs this shit. I'm stuck there forever
I'm sure you could sell it, you just have to list it on their marketplace below the floor price for similar tiles.
While just about every "metaverse" project has been a disappointment in some way, I think Decentraland has come a long way in the past few years and still has the most potential to "make it." People are building stuff there every day. Having said that, I won't be investing in MANA or land tiles any time soon. It is fun to roam around and see peoples' creations though, no doubt.