We'll have to agree to disagree as I have yet to see an example of this on HN. In my experience 100% of submissions (and comments) critical of Israel gets spammed by people saying it is antisemitism.
Most but not all apparently, though I don't think it's as bad as the one you reply to seems to imply. E.g. there's already some 'a lot of anti-Israel is also antisemitism' sentiment creeping in in some comments, without data to back that up.
I think you misunderstood me (or I don't understand what you are trying to say here). I was just pointing out concrete examples of the 'You are in a tread this very moment that shows proof of his opinion' since you replied to that by asking 'In what way?'.