User blog comment:ForestFairy/How to resolve conflict/@comment-4948575-20150827214709/@comment-303594-20150911081906

It's important to realise that an infinite ban on an IP address wont' do anything, as IP addresses often change. You might actually block someone else by mistake.

I suggest 3 months as the absolute maximum for an IP ban. If they come back after that, colour me surprised (and try 6 months)