I don't know if this is a good thing or a bad thing
Googlebot has been really hammering my forum. I guess it's good because I have great placement for different types of searches. (Always on the first page, mostly the top 2 and many times #1)
One minor concern is google is about 25% of the daily bandwidth that is used.

What I'm really concerned with is I get on the average of
20-30 error message PER HOUR from googlebot (ID'ed from the IP addy)
Errors like this for example:
Personal Messaging is only for members
http://www.mysite.com/cgi-bin/yabb2/YaBB.pl?board=&action=imshow
or
Sorry, this service is for registered members only!
http://www.mysite.com/cgi-bin/yabb2/YaBB.pl?board=&action=viewprofile
I tried different things with sitemaps and robot.txt and the problem seems that the bots don't understand the highlighted part
Without giving a reason for applying for membership we cannot process your application.
http://www.mysite.com/cgi-bin/yabb2/YaBB.pl?board=&action=register2
I tried
<a href="http://www.mysite.com/cgi-bin/yabb2/YaBB.pl" rel="nofollow">login2</a>
in /default.html which of course shows up as links on the forum.
I'm stumped, any ideas that would help?
Thanks