I recently had evaluated my entire backup plan and CrashPlan was evaluated as a possible change. It was one of two finalists I was debating between. Boy am I glad I didn't go with them. I understand that they will not just cancel the existing users and are only preventing new customers from signing up. But let's be real. We know what this means. It means they will not be giving the individual consumers in any sort of priority whatsoever. The non-commercial customers have now become a legacy operation.
FWIW - the reason I decided against CrashPlan was:
1) I inherently don't trust anything that is unlimited everything (storage space, versions, undelete, etc.)
2) I especially don't trust anything that gives all those unlimited features for a paltry $5 a month
3) My speed was horrendously slow. Seemingly capped at about 2 mpbs (250 kbps).
4) The application seemed to be bloated and resource heavy.
5) They have a well known issue where you can wipe your entire backup from their server if you encounter the dreaded disaster scenario (or get a new machine) and have a fresh O/S with a new installation of the software. If you don't do the steps exactly in the correct order, it will see your new installation as being the source copy and having nothing to store, and subsequently wipe everything on their servers. I see that they recently posted something on August 1, 2017 about "adoption" which seems to be migration for new machines so maybe this issue is finally addressed.