I made this suggestion ages ago but I don't think it ever got looked into. If you read the policies the meeting rules do actually say that a participant may not object more than once under the same reason. Realistically that should prevent any issues but it never does seem to as it's often loopholed by people who will just make a new, almost identical reason every time until the vote is swayed. Limiting the amount of times an individual can object, regardless of their reasoning, is probably a better way of going about it to prevent that from happening and ensure votes are fair and not biased.