Milter-greylist

1) Why to show manual added acl based whitelisted stuff in logs, like
-  "milter-greylist: k0N8LMLv009686: skipping greylist because sender
DNS name smtp-out-3.neti.ee is whitelisted, (from=<xxxxx@...>,
rcpt=<xxxx@xxxx.ee>, addr=smtp-out-3.neti.ee[194.126.101.111})". It's
kind of pointless and just takes resources?


2) Spammers who use a normal smtp server, will pass true greylist
anyway, so maybe someone could write option which add these spammers,
who constantly send spam, in greylist permanently? Automatically would
be great, but the manual based acl will also work.

3) Sendmail macros, manual says to add in the sedmail.mc:

INPUT_MAIL_FILTER(`greylist',`S=local:/var/run/greylist/greylist.sock')dnl
define(`confMILTER_MACROS_CONNECT', `j, {if_addr}')dnl
define(`confMILTER_MACROS_HELO', `{verify}, {cert_subject}')dnl
define(`confMILTER_MACROS_ENVFROM', `i, {auth_authen}')dnl
define(`confMILTER_MACROS_ENVRCPT', `{greylist}')dnl

greylist.conf says:

# Do not use ${greylist} macros from sendmail's access DB.
noaccessdb

Does it mean, that these macros previously added, are disabled? I
didn't add them, and everything works fine, so do I need them at all?