Raul Crimson is confused by it. The Secondlife Newspaper (Good luck keeping that name on your publication!) offers a wee bit of insight that sanity could prevail. Vint Falken suggests both the silliness and the reality of the situation. New World Notes runs down the wider blog reaction.
I saw the notice last night and posted my “Legalese” page at the top of the blog. Hope that covers the bases.
For my money, though, Wrestling Hulka has the best response.
(Anyone want to guess that Richard Minsky/Artworld Market’s trademarking of the term SLART might have been a precipitating factor?)