> I've started to pick this habit up myself. Yet on other forums I'm on they merely delete the entire last message and type away with their own stuff. The whole reason I brought this up is because I want to know why you guys write replies this way, and if you always did. I'm intrigued.

I use any of the three methods you mentioned, depending on the circumstances. In this post, I'm replying to a question or problem you posed, so I've left the section of the previous post in which you posed your question as a reference point.

When someone poses several questions/problems within a single post, I'll often use the "insert new material in between the lines" method.

I generally don't remove all of the previous post from my reply unless I'm typing a very specific response for a specific person. Because I know that that person knows what they just wrote and doesn't need a reminder. And maybe sometimes when I'm posting a completely separate thought under an already-established thread. But I don't think I do that very often.

And sometimes I probably just use one of the three methods at random, based on my whim of the moment.

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