In the bottom-right corner of every post on this site, there is a "Reply" button. When you click it, the software inserts the post, in quote tags, into your message box.
Instead of using this function, you've highlighted posts, copied them and pasted them into the message box, obscuring where what you're saying starts and where what other people are saying ends. Not only does that make your posts a bit of a chore to read, because we've no idea what it is that you are saying, it's a bit bizarre as highlighting any part of anyone's post also creates a new, floating Reply button...
Several of your recent posts replying to others have been made in this manner. Please start using the post reply and quote functions.