Not sure which message board you are on, but the ones I’ve seen are mostly guys going after 8’s and higher when they couldn’t even get a 2. Their refusal to date less attractive women seems to be what keeps them alone. At least from what I’ve seen.
Both sides seem to be accusing the other of the same thing; failing to improve their looks and lowering their standards. The only thing that seem to go in favor of the incel position is that experimental data suggests women rank men more harshly on looks then men do women.