It looks like all the names I removed in the past have been reinstated at BrandBucket, making them indexable in Google so that BrandBucket can use them to potentially grab my leads for their own inventory.
As you noted we paid a $10 fee to list domains with BrandBucket, and then removed names as per their own terms and conditions. I did not agree to BrandBucket retaining a landing page with an inquiry contact form for those names (so I'd say BB and DNBolt are equally trying to illegitimately take contact info and capture leads for domains they have no right to sell). Because BrandBucket is a paid service, for them to create such a "removal penalty" where they use your removed domains to generate leads for themselves, possibly at the expense of your lead going with a BB name instead of your removed name, is not appropriate.
I have also sold many of the domains I removed from BB to end users (after they were removed from BB). I don't think those end users will appreciate seeing their new business names appear on BrandBucket landing pages, and have to compete with BB landing pages when people search for their business. BB do not retain landing pages for domains they sold themselves as they know this would irritate buyers, but they have no issue annoying our buyers that bought BB removed names from us outside of BB. I think this is an unprofessional move by BrandBucket.