Tenorshare and affiliates
Data recovery, password recovery, video conversion, and PDF conversion spam. Has various other names such as SmartKey. The scale of the spam and the fact that multiple malware programs have been found on these IP addresses suggest that the conduct originates from a criminal organization.
Moderators don't have direct access to modify the blacklist; that can only be done by developers, and is non-trivial. However, having destroyed the spamming user and spam-deleted the offending answers, the built-in spam tools should have picked up enough information to hopefully prevent any more spam from this user. If you continue to see that specific link, ...