The page still gets indexed its just not getting as much exposure because its not getting boosted up because of the new bump changes. Only threads which have dedicated supporters who are highly established in the community which have earned a lot of merit will be useful to bumping up your threads. The bumping changes means that projects which are exciting and have dedicated supporters who are pressing that bump button frequently are the ones getting the most exposure and those that are spam coins with just newbies and low merited members bumping their topic get forgotten and don't generate much traffic. Most of your traffic will be coming directly from Bitcointalk and not from google searches.