I have a feature request for this site (if it doesn't already exist and I'm just not seeing it): Some kind of alert on the site when a comment I make receives a reply. My memory isn't great, but I still want to see answers to questions/comments I might have forgotten about.
That's what the little red square means next to your user name. If you click on your username, then click on notifications, you'll see all your replies and then some.
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Ha, took me a while to realize we have a bio page/notifications. Thought the red and orange boxes were strange, accidentally clicked on it a couple of weeks ago.
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Oh! Awesome. Thank you.
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