FYI, Allion has been delisted at Novaexchange.
Is Novaexchange still operational? Didn't we read in the news late last year of how the exchange went under? Based on that, it makes no sense if a coin is delisted on Nova or not.
They've just announced they're staying open, so yeah, given that's the only exchange which listed ALL, and it's going to cost thousands of dollars to get it listed elsewhere... it's fairly significant.

I do think it is a bit odd delisting a coin when they disabled deposits in November last year, effectively turning the exchange into a virtual play money withdraw only system. It's hard to trade a quiet coin when holders cannot deposit it. The whole thing has been quite odd.