People are still discussing this link. Incidentally, if you look at the comments on this post, you will see that this "query yid" states, "When you are interested or not I am sincerely sorry for how you’ve been treated. And I never said I would justify how you or anyone else was treated but I can explain WHY! And the WHY is halachicly based and practiced by the majority of Orthodox!"
So Query Yid, I'm still waiting for this halachic reason to be downright nasty to someone who has already converted. Perhaps, this Query Yid is talking about those who are still in the process. If you're talking about dissuasion, that should not apply to someone who is already converted. I guess you're using a different Torah because the Jewish Torah says to love the ger over and over and over and over again.