Heya Autodidact,
"Christian" like "Muslim" or "Jew" is a word used to describe a person's belief system. There is no central theme that is adopted by all Christians only small overlaps from one to the next. Since we cannot know for certain what the contents of a person's belief system are, we are very limited in accurately applying those terms. Its not like I can point at a piece of verifiable evidence and say "well this shows that this person obviously believes this".
The fact is that there are probably plenty of people who call themselves Christian and genuinly believe that they are Christian yet lack sufficient understanding of Christian beliefs to be accurately defined as Christian. You asked whether they were lying or deluded and I think the latter is most common.
Many Christians on this forum have replied without answering your question about the list. I personally find this thread remarkable in that it is the only conversation I have ever been in within which theists have advocated scepticism and been encouraged to suspend scepticism by an atheist. This is not a criticism of either you or theists but, as a sceptic myself, I can fully understand why they are reluctant to "try out" their definition on your list given both the limited information they have of the people and the physical inaccessibility of the kind of evidence required (ie their thoughts and beliefs) to answer such a question accurately.
I might refer to somebody as Christian but I will always have a doubt to whether they are or are not because, whilst I don't believe in a God who does have access to their innermost thoughts, I surely believe that I don't possess that ability myself.
Maybe the people on your list are Christian. Maybe not. Only God knows and as far as I'm concerned he doesn't even exist.