Need some opinions on what data to list

[Kris Deugau]

I work for a growing ISP.  We're sloooowwwwwwly getting our IP space 
assignments organized and tracked;  we have had a pretty much up-to-date 
database for our internal use for a while now, and I've got a partial 
export to a local rWHOIS server that's been running without apparent 
issues for some time.

However, we'd like to make this a fully-live rWHOIS server, and we need 
to know what netblocks we should make public, and what to keep hidden in 
some way.

Currently, the export process I have running pushes out all customer 
netblocks (whether real or just a set of contiguous IPs aligned along 
netblock divisions from a PPP pool - business and residential are 
separate pools) down to /30.  According to any documentation I've seen 
for SWIP, the smallest netblock that should usually be listed is /29. 
Does this still apply for rWHOIS?  (I haven't seen any indication of 
what size netblocks should or should not be listed anywhere.)  We've got 
the better part of an aggregate /21 used by /30 netblocks.

Secondly, how do you decide what customer data to expose?  For some 
assignments, the customer is actively using a medium-large chunk of IP 
space, and they have their own IT services and should be listed as the 
tech and abuse contacts for any bad things apparently originating from 
their network.

-kgd