Keep in mind that some of these "clueless folk" may expect individually assigned CIDRs to be registered accurately, and are complaing to the registered contact for the block. If these blocks aren't registered/SWIPed appropriately, your argument is weak.
Wrong. Most people (clueless or not) only know of Internic and therefore do not look at Ripe or Apnic. Even when it says in the Internic (now Arin) entry to look at whois.ripe.net for proper delegation, they ignore it since it is one line and not prominent. ARIN refuses to add comments last time I requested. The end result is I get about a dozen spam complaints a week from users who are simply complaining to the wrong person.
ARIN adds comments to the records for RIPE and APNIC, it's not logical for us to add comments to every non-US network record when it makes more sense to take your record out of ARIN and put it in RIPE's db. This is something the registries are working on. Kim Hubbard ARIN
Hank Nussbacher