Thank you for bringing me attention on the issue, and sorry for the confusion.
When I only reply in title, it is the answer to your question in title, regardless you have content or not. So people read your title and my title will get the idea, without clicking any post.
When I only reply in title, and it obviously does not answer your title, it is the answer to your only question in content, or in other cases the last question in content.
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Exception: when you have multiple questions, like "Do I ..." and "Can I ...", then the 'You do' implies to "Do I ..." question, and "You can't" goes to "Can I ...".
When you have multiple questions and I address them, I will clearly put the answer right after your specific question. In case any question is not answered, it is not necessarily meant I don't know the answer (in which cases I will clearly reply with "I don't know"), but it implies that the answer must be included elsewhere in the replies and you will get it when you read them, or it was answered previously to same poster.
★★ I prefer not to repeat my answer when you ask the same question again, so if you don't get my previous reply then please let me know your understanding so it could be addressed more specifically.
Hope above explanations help, and sorry for the prior confusion.
By the way, please make 移壇常見縮語 handy which might be helpful in reading my post.
Thank you.