I try to be kind, upbeat, etc in my interactions with other people, especially at work. I want to treat others well, work together peacefully, and leave the project happy. I’ve noticed that some people (particularly more curmudgeonly folks) seem to read that attitude as naïveté, and feel like they can walk all over me or treat me like I don’t know what I’m talking about. Why is that?
I’d say it’s seen more as a sign of insecurity and some people thrive on that. You need to set boundaries or they’ll keep trying things.