I support this. The proposal reflects what I want. I'm actively on board.
I have concerns but can live with it. I'm not fully convinced, but I won't stand in the way.
I disagree but won't block it. I don't want to participate in this decision, but I recognize the group's right to move forward.
Fundamental objection. This violates our purpose, ground rules, or agreements. I'm asking the group to find another way.
A block is rare and serious. It's not "I don't like this." It's "this would compromise something fundamental." A block must be grounded in the shared agreements the group has already written — not personal preference. "I'd prefer something different" is a reservation. "This would violate our purpose" is a block.