Looks like a user has been SPAMMING (as all hosting companies get) and have been dealt with by removal and banning.
All SPAM listings for Exploitable Servers have been notified and now removed.
All but one
.us.sorbs.net/ which will effect a lot of other companies dealing with getting de-listed too as SORBS are shutting down and every day will be a Friday if you get my drift NO RUSH!
Hope SORBS can act quick for Krystal and get the I.P. removed.
Thanks Simon (krystal support) for your email!