I suspect if Clinton had won those caucuses, there would be little to no complaining about how "undemocratic" caucuses are.
A lot of the post WA/HI/AK posts come across as serious whining by a bunch of folks whose candidate has already won.
I am also officially tired of Sanders Voter Suppression memes on FB as well, lol. I know many of my friends are feeling the Bern...but let it go, lol. Ignorance / Laziness > Malice when it comes to that kind of stuff.
Even if it were true, if the DNC were that far in the tank for Clinton, then there would be nothing Sanders could do.