I agree to limit in post and in rare occasions as mentioned, if you know the venue has excess boom, maybe a lil' rolloff.
Check thru other threads. I know there has been lengthier discussions re: rolloff.
One thing of notice, I am pretty sure that using rolloff is not a way to prevent distorrtion from bass. If it's happening, it's likely in the capsule of the mic. Again, there's more on the subject in another thread.