there is a fundamental disconnect here. the IP space is neutral.
it has no bias toward or against social behaviours. its a tool.
the actual/real target here are the people who are using these tools
to be antisocial. blacklisting IP space is always reactive and
should only beused in emergency and as a -TEMPORARY- expedient.
IMHO of course., YMMV.
Show me ONE major MTA which allows you to configure an expiration for
an ACL entry.
The problem with your opinion, and it's a fine opinion, and it's even a
good opinion, is that it has very little relationship to the tools which
are given to people in order to accomplish blocking. Kind of the question
I was contemplating in my other message of minutes ago.
If people were given an option to "block this IP for 30 minutes, 24 hours,
30 days, 12 months, 5 years, or forever" - I wonder how many people would
just shrug and click "forever."
This may lead to the discovery of another fundamental disconnect - or two.