There's a strict limit to the amount they can send, but as far as I remember it was pointed out that having such a block made it impossible to make a throwaway account in order to pm the moderators about a problem with the real one. It also made it impossible for new members to answer mails from moderators about behavior that needed changed.
Originally Posted by Grashtel
Reductionist and proud of it.
Being ignorant is not so much a shame, as being unwilling to learn. Benjamin Franklin
Chase after the truth like all hell and you'll free yourself, even though you never touch its coat tails. Clarence Darrow
A person who won't read has no advantage over one who can't read. Mark Twain