Of all the things you could critique DSA on, this is the hill you're going to die on? 
DSA deciding to do a mask mandate at this event is unequivocally good and based. Shut the fuck up, you fucking dipshits.
Imagine being this much of a fucking goddamn crybaby about masking. Eat shit, you ableist fucks.
One of the biggest lessons this pandemic has taught me is the astounding number of people for whom leftism is really just performative, and that when push comes to shove, these people will make the biggest fucking stink about having to do something even mildly inconvenient for even a single fucking event or context and show themselves for who they really are.
Sure, but you could say that about any electoralist outfit. They're still a powerful organizing body and they've proven successful at influencing policy by sheer weight of numbers. If you're going the electoralist route, I've seen much worse.
Half the motivating force behind the DSA is the fact that mainstream candidates do suck. Cultivating younger and more radical leadership, then promoting those leaders to high office is a major motivating factor in the movement.
If the only thing that comes out of DSA is a new generation of experienced organizers and leaders, I'd call the community a success.
they kind of burn through key organizers though. it's hard to be in the org for more than a few years if you actually do work.
That's what happens when you don't have a ton of money and leisure time to throw at a project. Not really a DSA issue so much as a general organizing challenge.