It almost fixed itself now. When block times were low, big miners were submitting blocks with fake timestamps in such a rapid succession, that honest miners were not able to squeeze in their own blocks (due to the last block having a timestamp a few seconds to a minute in the future). Now that blocktimes are close to 5 minutes, it happens very rarely. If they try to set their timestamps more than ~two(?) minutes into the future they risk getting their nodes banned.

At least that is my understanding. Not sure how the attack on the original Pascalcoin plays into that, but I guess the impact on Pascalcoin was much lower.