Could be LMAO at Grant and pals for pushing the debunked narrative. On a larger scale, at the 1000 rumors all over the internet in general. His old conflict with the press.
Could be LMAO at Karl for getting contradicted. Which wouldn't be great because it would underscore bitterness/conflict there.
Could be LMAO at Vlade, thinking he's either lying or not in as much control as he thinks.
Could be LMAO at everyone, because he's ready to force his way out and these promises will mean nothing.
The only one of those that is any good is the first one, but in truth I think it the most likely given his tweet history. When you really get down to parsing a lot of his cryptic and worrisome tweets, you can translate almost all of them into problems with the media as opposed to (or in addition to) others. They have been his primary antagonist. Well, them and the refs.