Not having a strong preference about it ... I wondered if a weekly bloom thread be a kind of a middle ground? Twenty threads by end of summer? Or even "fortnightly" at 10 threads? That might allow the previous bloom threads some time to drop to the less active bottom of the page...
I'm just thinking that ATP must be growing in member numbers over time ... and some threads may get longer internal strings with the growing number of us that own hundreds of cultivars to post from. I know it is taking my computer a much longer time to load the bloom thread as it goes on, so I am much less likely to enjoy seeing what people have to share.
As more people become members, including those with home-garden sized numbers of cultivars, could it perhaps help to encourage them to join in, too, if the threads were distributed over a little bit shorter time than monthly, even if it were just for peak bloom traffic time of June-July?
