The plaintiff's lawyers say that Google has won five out of six similar lawsuits on procedural grounds so looks like pretty common.
As for reputation, why would a behemoth like Google care if they squash a little guy (or two, or a dozen)? Even if they go on a PR offensive they still won't be able to outmatch or shout over Google. At most people like the HN audience will find out and then... proceed to do nothing because Google's products are either ubiquitous (like search) or first-in-class (because they are free, like email).
As for reputation, why would a behemoth like Google care if they squash a little guy (or two, or a dozen)? Even if they go on a PR offensive they still won't be able to outmatch or shout over Google. At most people like the HN audience will find out and then... proceed to do nothing because Google's products are either ubiquitous (like search) or first-in-class (because they are free, like email).