I would'nt spent time worrying about people's remarks, I however would advise not to do Erusim Ketubahs for Nondenominational groups, which relates to Churches. If you would have listed it in terms of Jewish sects instead of Nondenominational it would not have came across in appearance as if you approve of doing marriages for Christians which will be sneered at in any rate amongst another Orthodox Jew. Unfortunately another Jew is always speculative of the motives of a Jew He meets, until He obviously can pass there specific line of questions. These person wasn't really interested in your answer, even if you gave an answer it would not have been met with friendship it would have been met with hostility in this case I would write that You are not here for rife, contention and discord. And such purposes of contention are Ha'Yetzer Rah. And if this person was a Jew He would have known that, it is against Halacha to cause to seek out rife and confusion or to belittle someone. Thus the pointing of the finger by this person is a grave sin. I would if I were you point this out to him using Halachic verses if necessary against the use of Ha'Yetzer Rah, Lashon Ha'Rah. This is an evil motivation and not a merit and thus He is intending on breaking Hashem's Otot. If you do not point this out for Him at least put this in writing for others who will see your site and see that comment as to besmirch you. I discussed this once in great detail with a Rabbi Gavrah Rabah of Yeshiva Vaad Ha'Rabbonim and the case file, or the place of Halacha against this is stated as which you should write: Meshyash BYodoe Limchos, VAhnow Mowcha, Nahnash Olov (Tractate Avodah Zoroh 18.a). In this way you are not downtrodden by the words of this person and onlookers who don't know you can perceptively see your message and hold this person accountable for if you don't write against this person these words, then it stands to be seen that He is correct and You are wrong. Thus approving by some that you might not be a real Rabbi! Thus these type of Ha'Yetzer Rah- Evil Inclination, Lashon Ha'Rah- Evil speech, Ayin Ha'Rah- The evil eye as Rabbi Yehudah Ashlag states is a grave sin a Horoyot this is Plotz! Put a stop to it immediately!!! Further more one in Jewish law can't give Musar to a Rosh Ha'Kollel, or to a Rabbi unless He is a Rabbi. I have dealt head on with any person that would seek to condemn me by Jewish Law and it always came out toward the end that they never had a rebuttal, not another comment, they all of a sudden get quiet!!!!
-Rabbi Aminadav Hinton