In September of 2015, I did a Westlaw search, which returned 4575 cases referring to a "limited liability corporation," rather than the proper "limited liability company" or LLC.   That search followed one that I had done on May 2011, and the 2015 search showed a jump of 1802 new cases.  Today's search returned 5,211 such cases, an increase of 636 cases in five and a half years. That's still more than 100 cases per year, but it's a reduction of about half the rate we were seeing between 2011 and 2015.  (I concede this is not especially scientific, but it's still instructive.) 

It appears, then, that we're making progress, but two steps forward, one step back. Even Jeopardy — Jeopardy! — recently got this wrong.  I thank Professor Samantha Prince at Penn State Dickinson Law for bringing this to my attention, upsetting as it is.   

In addition, a recent tax court opinion followed suit: "All limited liability corporations, or LLCs, mentioned in this opinion are entities treated as partnerships for federal tax purposes." Padda v. Comm'r of Internal Revenue, T.C.M. (RIA) 2020-154, at n.3 (T.C. 2020) (emphasis added).  

So, there's clearly a lot of work left to do, but I remain hopeful that we're trending in the right direction. LLCs are still not corporations, and we need to keep reminding folks. Stay vigilant, good people!