You can lodge your complaint directly with the website owner, Peter Waite, at email@example.com.
However, if you were a moderator and came on and found PAGES, yes, PAGES of spam posts in multiple forums you would understand the logic and wisdom behind the timing filter. We've tried multiple defenses and this is overall the most effective. Peter is planing on a total software rewrite later this year where he can implement other anti-spam measures that aren't able to be used with this version of the software.
Signed, Another computer engineer.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & HW's LUPUS 101
"Life is far too important to be taken seriously." - Oscar Wilde