If I create multiple post and save them to submit at different time, I could make mistake of submitting the wrong post at the wrong thread, that's why I respond respectively but I forgot to submit that one. I was distracted and absent minded.
Yes, but you know the topic by quoting part of it. If you've noticed, more than 80% of your posts begin with a quote.
In general, try to respect the forum, read your posts, and reply only when necessary.