I'd argue that makes him trustworthy. We don't know if he's honest. You can't know if I'm really married, or made it up for OPSEC reasons. And I don't think that matters online, we can be anyone we want to be.

If being honest means you don't lie, social interactions can get awkward. Lying is a social construct, and many people wouldn't even call it being dishonest. Example: "I love what you did to your hair!". Lol. What I'm thinking might be: "You look ridiculous, but I'm not going to say that to your face because there's nothing to be gained by being honest".