There is already a downvote limt which will prevent this from happening too often. Additionally you could calculate the threshold so that the downvotes must be from unique members to further stop this kind of abuse. Anyway, if there is the risk of being banned, even unfairly, in a race thread - it will have the desired effect in that people will avoid them.GitanesBlondes wrote: The problem with that approach is that there are people with enough votes to downvote that do so out of spite.
That in turn is a problem with suggestion 2 where certain members would no doubt target other members they do not like so they can get them banned for a period of time...
On the other hand, a downvote made just to spite very very rarely happenes in a proper technical thread. Certainly not enough to affect a time weighted average threshold. So if you stick to these threads, and make a decent conribution, you will never be banned under this system.