Earlier quoted context omitted.
And this reads as if someone was trying to force him to install means to spy on his users, and it wouldn't be surprising if the aim was to spy on Snowden directly (if he really used this service).
It may be simpler than that. Even if Snowden has walked away from this service, the publicity may have attracted a lot of people the authorities find interesting, including legitimate (whatever that means) persons of interest.
No, this has nothing to do with common criminals and everything to do with Snowden.