You flat out admitted that you said "'Delusion' is a useful category for understanding religious thought." I'm sorry, I don't really see how that can be interpreted otherwise.
No; but I also don't think that religious people have a monopoly on understanding their own traditions -- which is, like, 90% of the conflict I've ever had on Reddit. Just to take one (uncontroversial) example: a good number of Christians don't have a fluency (or even an intermediate knowledge) of the languages that their revered texts are written in. While this certainly doesn't prohibit someone from a high level of understanding on certain issues, I can't tell you the number of bad interpretations I've seen that come from an inadequate understanding of the original languages (and in fact I just wrote a mammoth post series on /r/AcademicBiblical[1] precisely on this issue). In that sense, I do think I have a certain amount of knowledge/expertise beyond that of the average /r/Christianity[2] poster or whatever.
I never said they had a monopoly on their religion, and I am well aware most can still learn a lot about it. But you did say this:
I've never understood this idea that Christians shouldn't be judged if they don't practice the ethical principles that they proclaim to hold. Some people (e.g. on /r/Christianity[3] ) are drama queens and will interpret debate as if the other person personally killed their puppy. I'm willing to forgive every single insulting thing that's been said to me as all-in-the-game-of-debate; but as best as I can tell, sometimes people just like holding grudges (for whatever ungodly reason). Or maybe they're not able to help it; but in any case, I don't think I'm not justified in thinking that my ability to let bygones be bygones makes me more easy-going -- or perhaps even nicer -- than some people.
Well, except for the whole "remove the plank out of your own eye" first, I never said people couldn't be judged. I've just never seen you admit that they might have a legitimate reason, and, as quoted above, you just keep the "I'm better" attitude.
And, it really all goes back to you come across as purposefully vitriolic, whether you intend to or not. I personally think you make good points, but God can you be insufferable at times.