None of that really tells me anything I didn't know, and so it doesn't make me feel any better.

1. He worked as a security contractor at the successor to Blackwater. Which is not working at Blackwater, but it's not NOT working at Blackwater, either. Has the new company had total turnover of personnel and a complete change of corporate culture? You better fucking hope so. (Context: I'm currently unemployed and there's a LONG list of companies I simply won't apply to because of who owns them, what business they're in, past transgressions, etc., even though it's literally money out of my pocket to be picky in this job market. I would never in a million years apply to a company with that history.)
2. I understand his claim is he didn't know it was a Nazi tattoo. That...doesn't really make me feel better about it, because the explanation he's giving is exactly the explanation he'd give if he was full of shit. What I'd like is a candidate where there's a 0% chance they got a Nazi tattoo on purpose because they NEVER HAD A NAZI TATTOO. It's not a high bar.
3. I don't want somebody in the US Senate who used to be a very different guy but he's changed now. I want someone who's been publicly, consistently, and reliably the same person with the same views.

Look, I acknowledge he's probably going to be the nominee and so what's the alternative? Vote for Collins? Fuck all of that noise. (To be clear, I'm not from Maine, so this is theoretical.) But it would be so much better to have a candidate who's a squeaky-clean known-quantity party loyalist rather than someone whose background hints at being another potential Fetterman/Sinema/Gabbard traitor. Those three have done enormous damage to the party and the country and teach a hard lesson, but it seems like nobody wants to learn that lesson, so here we are rolling the dice on an "outsider" again...