I didn’t say it didn’t bear endless discussion. I said it’s plenty clear enough in context of the question in the title of the thread.If the concept of atheism is so clear, why are there endless discussions in this forum about it?
If the concept of god is vague, how can the concept of godless be clear?
In any discussion it is necessary to specify the concepts when there are reasonable doubts that they are not used in the same way. This is normal. Another thing is that there are people who do not know how to do it.
No, not any discussion. For example, it’s possible to produce pages of debate trying to nail down exactly what can count as a sandwich - there are doubts as reasonable as the ones about what atheism can be - but if you do that when someone says “hey do you want to get sandwiches for lunch?” People will stop asking your opinion and just bring you turkey and Swiss on wheat.