As I stated earlier I don't see the need at the moment.
The ranking up process is locked by the new rules. The total shitposters cannot rank up to Jr. the ones that are more advances will probably reach up to member but not more.
Those shitposters that got the merit airdropped are now being filtered, I see so many ban appeals every day, so after some time the forum will be cleaned from most of the spammers. This process will continue and more and more of those who post nonsense will be filtered naturally.
I think theymos did enough changes /restrictions/ which will have more impact in a bit longer run.
I think that improvements on the bitcointalk and cleaning it from spammers is possible only when new changes are implemented regularly. Yes, at the moment, theymos has introduced new rules, which already brought the solution to the problem closer, but this isn`t enough. The effect of innovation doesn`t grow exponentially; on the contrary, over time, more and more participants will find ways to break the rules and circumvent the restrictions.
We can`t stand still and be content with existing progress. Otherwise we won`t achieve the desired, but also lose what we already have. Therefore, I believe that after some time it`s necessary to analyze the result of previous innovations, draw conclusions and introduce new regulations in order to continue the forum improvement.