There is a thread somewhere with some analytics data showing that Neonmob suffered from the infamous August Update, though I cannot find that specific thread atm. We do know that creators were complaining about lack of sales post update, and since pack sales is the only way Nenmob makes money... well. Example below:
That was in October. We haven't heard much since, but many of the creators and would-be creators (thumbs to self) bailed on making series, especially since the royalties were dropped to 30%, which was a problem in and of itself. I'm not sure how many people from the old days can comment still on how that update has continued to affect sales in the recent months.
For more hard core numbers:
From September 2016, not sure where the numbers are from
The more recent data is somewhat more damning if you look at the graph:
Again, I don't know how the aggregate sales have changed, but when you combine the loss in traffic, users leaving the site and the claims from pre-update creators about the abyssal sales, it does not look good.
I'm pondering @marquaaaa's line of thinking that Neonmob is looking to inflate their traffic values to sell and run. New ownership could do this site a lot of good or else finally kill it dead in any case.