I do believe people need to be courteous, but some people
might be using the program for their own needs.  For
example, I use it to crawl my own application and it takes a
day at the fastest speed.  Putting a limit on how fast it
runs would not be in my interest.  Unfortunately people
abuse this priviledge and I respect the fact that you would
like to have a limit on the speed.  I also wanted to point
out the other side of the story.

Thanks