Actually I think this is a case where you've taken something I said personally when that was not the purpose of the use.
I was not talking about your beliefs when I said "delusions," because I don't know what they are. You said you believe in a god, I don't know what you mean by that. You could be using the word the way Hawking or Einstein do, referring to the Universe. And that isn't a delusion!
When I was talking about the rare instance that people are "generally concerned about the actions one's delusions could lead them to" I literally meant that. In any instance where you fear that something someone believes, that you know is not true, will cause them to behave in a dangerous manner, to criticize that delusion is what it means to respect them.
When dealing with a stranger, such as you, who does not make truth claims about his faith for all to attempt to debate, but keeps his faith to himself and you have no reason to believe it will effect them or yourself, there is no reason to debate or even criticize that belief.
Someone has to put themselves out there to get my attention, making assertions about things they couldn't possibly know, I don't bait people who keep it private.
Now if you want to be offended because I refer to demonstrably false supernatural claims as delusions, simply because you hold supernatural beliefs of your own... I again don't understand.
It would be like if said that astrology were B/S, and a homeopathist took offense. I never said anything about your beliefs, unless I identified a fallacy that is the rationale for your belief.
Why is delusion offensive if it is an accurate identification? You don't regard the word "false" or "wrong" or "illogical" as offensive as well do you?