---- It is easy for competitors to hurt established sites (negative SEO)
brotherhood_of_LAN - 4:10 pm on Dec 13, 2013 (gmt 0)
Here are my other suggestions to Google:
While I don't have much issue with your first suggestion, it's worth remembering (as pointed out in the thread already), that some sites are unknowingly hacked and can be linking out, it'd seem unfair to permanently blacklist a domain.
Plenty would agree there is a 'fault' with the way Google is dealing with some cases, but perhaps they have to turn the dial so high as to avoid all the undesirable results that'd rank otherwise. If there was no such thing as links with negative impact then there'd only be neutral and 'links that work', and there are plenty permutations and strategies of link building that could/are churned out to expose what will rank.
If anything, I'd suggest they offer an 'avow' list. There's plenty country specific small businesses that'd benefit from avowing their local TLD and forgetting the rest.
IMHO it's easy to underestimate the challenge Google has given the competitive pressures they face from people looking to rank their sites.