I reviewed the sugya of gebrokts many times. There are strong reasons to not see it as issur involved. The poskim who weigh in on this almost unanimously conclude that it is completely muttar. The matter at hand is Pesach chumros, which are considered symbolic of the Avodas Hashem vs. Milchemes Hayetzer issue, and the deciding factor is Mesoras Avos. In consistency with the greatest dynamic of Pesach being למען תספר באזני בנך ובן בנך, the handing down of tradition in terms of minhag is to be recognized for how great it is. I have a dear friend who is chassidish in every way, but comes from a choshuv family that have connections to the Chasam Sofer. He eats gebrokts at the seder. It was difficult for his wife to accept that, coming from a family that did not eat gebrokts, but she got used to it. Gebrokts was not associated with any other “kulos”, and is a minhag that deserves the same respect as those considered “chumros”.
“Not to say the word bread or bagel (what on earth is the reason for this one)?
There are many groups of chassidim who refused to use the word bread all through Pesach. They also would not say the word “rain” during Sukkos. Perhaps this draws focus to the power of speech, that the spoken word takes on greater value than a passing sound. Maybe, just maybe, we should think of that message when we feel the desire to share lashon horah.
There are many more very interesting minhagim on Pesach. In Skver, they have a far more restricted diet that anyone else, refusing to eat carrots and several other vegetables that are staples in most other homes. While I have seen some of their published writings about their minhagim, and seen them with a trace of humor, I needed to step back and recognize that their minhagim are mesora based, which is one of the most important pieces of Pesach. Some break the middle matzoh for afikoman, place it on their shoulder, and parade around the table or room, reciting the posuk, “משארותם צרורות בשמלתם על שכמם”. Not having experienced this minhag, I can find it amusing. But there were tzaddikim who practiced this minhag, and others who lauded it even if they themselves did not do it. Choices of vegetable for karpas are also interesting. It is said that the Gerrer Rebbe (בית ישראל) used banana. In the chassidic groups of Ropschitz and Tzanz, they made a brocho of Shehakol on potatoes all year, but בורא פרי האדמה on Pesach. I don’t get that one at all.