In my humble opinion, the danger of certain types of chumros lies in the reality that those who follow the Halacha, but not the Chumrah, are viewed by SOME Chumrah observers as being somehow less frum than they are
– – at least in the eyes of those who don’t keep the Chumra.
Now, this whole discussion of Chumra does not come here, by Gebroktz, since everyone is saying Peh Echad that it is more a Minhag than a Chumra. Those tying in anti-Chumra stuff here, where it really does not belong, give weight to the sentiment that there is actually a resentment to it rather than “my Rav doesn’t hold that way.”