I have been skeptical of Keffals since I heard that she once was an ML and had backtracked, but she's gone all in now it seems. No specific hate, it's just frustrating and tiresome. I watched the "No Socialism Hasn't Failed" that she references as being loony and it's fine
Rooting against leninists or stalinists is kinda weird cuz they were extremely successful. Lenin led a communist revolution of a barely industrialized society and Stalin won the largest, most technologically advanced war at that time against a sworn enemy.
It isn't about that though, it's about maximising the audience. There's a lot more western leftists who hate AES than those that bother to learn about them. Gotta keep that grift going, whether they're aiming for attention or money.