While having alternatives to Bitcointalk is a positive thing, altcointalk still needs a lot of improvement in terms of quality. Last time I visited it was full of spam and poorly translated content. Most of their users seem to be from regions lacking in economic opportunities and aren't very fluent in english. It is perhaps not the best place to be advertising a mixer but at this point these services might have to settle with what they can get and hope it turns out favorably.
There's going to be a positive effect, the teleport feature that the altcoin talk team implemented a few months ago is a means to improve the content of their platform by giving good posters here incentives to transfer their activity from this forum to their forum and the mixing ban here is some sort of blessing in disguise for Altcoinstalk.
Maybe this is the opportunity they need to be competitive, they already have their token as incentives but a weekly payout from mixing campaigns is what will make Altcointalk a desirable place for forum content creators.