The only maybe (hard to say honestly) credible criticisms I've heard about Smalls is that he's a bit egotistical and likes to garner a fanclub. From one of those "another liberal has written a scathing Google Doc and shared it with everyone" kinds of things. But this is so unimportant and minor, the decision to even write and share it is questionable. Like if he's a little annoying and it gets in the way of organizing just spend your time out-organizing him instead.
These kinds of hit pieces are only attractive to liberals who see him as a threat. He criticizes their projects so now he's on the NYC DSA lib hitlist, they're going to write a Jacobin article about him so hard.
The TrueAnon subreddit is completely incoherent and has a lot of reactionary sentiments. I think its only saving grace is the crossover from our community.