The big yellow "you have new messages" banner was created for a reason. If you want my attention, edit this page. If I want your attention, I will edit your page. If I just want to reply out of politeness, I'll do it here and save interrupting whatever you're doing... if you're interested in what I said, watch this page and find out. If I'm keen to see your response, I will be watching your talk page, or wherever I suspect you might post it. But if you have something to say you think I need to read, the big yellow banner is kind of hard to miss...
Talk pages are where people discuss how to make content on Wikipedia the best that it can be. You can use this page to start a discussion with others about how to improve the "User:Happy-melon/Header" page.