There is an automatic answer ban mechanism that stops users from posting many low-quality answers. However, I'm pretty sure users automatically get immunity from the answer ban if their reputation is sufficiently high.
Is this true? If so, it seems to me to be a uniquely bad decision for this particular site, because it is relatively easy to get above this reputation threshold by, e.g. answering questions about Newtonian mechanics, then use the immunity to post bad answers about modern physics. Can we change this?