Outlawing the prospect of direct campaigning is an extreme solution.
If a Legislator chooses to vote while they are uninformed, then it is their right to do so, no matter how detrimental it is to the overall political health of the region. This issue is similar to the bandwagoning effect in Assembly votes. Both are very difficult to solve without a strong approach.
With that being said, I would much rather see us adopt a more moderate stance, such as instituting a regulated system like the one that has been suggested here. Should this fail, we can and should revisit this issue in the future.