The website has been struggling for some time and they are seeing if the number of people going on the forum are adding to the problem. Horse and Hound seems to manage well with loads of hits in a day!
The BD website has always had problems, they seem to be getting worse all the time, they always have an exscuse as to why!!!! but as you say HH doesn't have any problem at all or BSJA website or BE website.
I think they just have a crap system and won't pay out for something better, there really are no exscuses whatsoever.
My brother works in very top level IT and that's what he told me.