Yesterday, this question was closed and locked, which spurred this discussion here on Meta. The reason given for the lock was that it was aggregating answers and this had to be cut off at a certain point.
If this is to be the policy going forward, should there be a system-imposed cap of X answers for a given question so that this is codified somewhere and is not a per-question judgment call?
At a certain point, a question could just drop the "Add an answer" option, which would avoid the stigma of having the question locked (and potentially closed). The text below the question could indicate that no more answers were being accepted for this question, but that the users were free to submit edits to existing answers in order to improve them or add more information.