I was just giving out the news about my baptism on another Christian site I will not name, and many started getting "triggered" when I said I was Pentecostal and it that the baptism was in Jesus name.
So many called Pentecostalism "a cult from the early 1900s" and they called speaking in tongues "mass hysteria". I had no choice but to get hostile as I felt this was a personal attack against me and my faith.
Why do people hate this specific denomination so much?
Hello, and welcome to CF. We are glad that you've joined us.
I am sorry to hear that you were badly treated when sharing the news of something that must have been joyous and exciting for you. There were surely kinder ways of staring their concerns.
In answer to the reason they were concerned for you, it is true that the group you seem to have been received into is of fairly recent origin, and reject some very important parts of what the body of Christians through the ages has believed. From the first, Christians were baptized "in the name of the Father, and the Son, and the Holy Spirit" ... often by triple immersion to underscore that formula. We may charitably disagree on many non-essentials, but Who God Is, is a very fundamental and important issue.
As to other comments here, I have seen many prejudices among Christians against others because of practice or belief. Some more justified, but many not.
Generally, I find it more beneficial to start with what we can agree upon, and build from there. At least in discussion. Our Church tends to hold very tightly to our beliefs and practices and not exactly embrace change, which is a little joke about us, but it's something I actually value.
Again, welcome to CF. If you have any questions about the way things work or I can help you find anything, please let me know. I'll give you a heads-up though, to hopefully keep you out of trouble. Acceptance of the Holy Trinity is a site policy, so you can't argue against that in most forum areas. If you are wondering, you should check the "Statement of Purpose" for a given subforum (it should be a sticky at the top of the list everywhere you go), and if it says "Nicene Christian only" then you can't argue against the Trinity there.