Can a member who seconds a motion vote against it?

A member who seconds a motion can indeed vote against it. The role of a person who seconds a motion is solely to indicate that they support the discussion of that motion in the assembly. By seconding a motion, the member is not expressing agreement or support for the motion itself, but rather ensuring that it is worthy of consideration.

Once the motion is brought to the floor for discussion and a vote, the member retains the right to vote in any manner they choose, including voting against the motion. This flexibility allows members to maintain their independence in decision-making while still participating in the procedural aspects of the meeting.

The understanding here is crucial; seconding a motion is a procedural action and does not obligate the member to vote in favor when the time comes for members to cast their votes.