The above is still possible under the new system, however I suspect in many cases the response will be he meets the criteria and there is no manipulation to meet the criteria, so he will stay. Once someone "meets the criteria" it will be difficult to get this to not be the case, as those on DT1 tend to receive additional trust inclusions over time, and over time, people will become inactive, and as such will not respond to (or see) requests to remove controversial people from their trust lists.
Inactive users won't stay on DT1:
- You must have been online sometime within the last 3 days.
- You must have posted sometime within the last 30 days.
I think the point he was making is that regular users will go inactive and not maintain their trust lists. If you have 10 users all including someone in their trust list, and all these users become inactive and therefore do not respond to request to remove said person, then the only way to remove this DT1 member will be through other DT1 exclusions.
As I said in the other thread, it seems a bit strange that you could have 100 or more people excluding someone, but if 10 people include them then they become DT1 (unless the other DT1s remove them).
Newcomers will just tend to have a couple of post then leave the forum. This because they need to get merit before ranking up. Ranking up is one of the motivation for a user to continue on learning about bitcoin and later on will invest.
Ranking up does not increase your ability to learn or contribute to the forum, apart from decreasing some wait times, which are only a problem in the first place if you are a spammer. The only real benefit of ranking up is that you can then earn more money from bounty campaigns. If ranking up is your only motivation to continue to learn about bitcoin, then you are here for the wrong reasons.