I'm no fan of spam, but this seems to tie in to net neutrality. I'm not sure I want verizon deciding who is good or bad on the internet.
Bogons are unacceptable regardless of what they're being used for, because the announcer is essentially hijacking those IP addresses. In this case the addresses being hijacked aren't being used, but they still don't belong to the group using them.
Any ISP that propagates BGP announcements from their customers should have filters in place to prevent this from happening. Verizon isn't doing their due diligence.
In all seriousness, it's not V who decides who is good or bad on the Internet - it's a shared consensus that things like this are Bad(tm).
Verizon shouldn't be helping people steal IP addresses from other organizations.