How does the post feeds in here work?

Sometimes there's a post on repeat because my feed shows everyone who answers on said post.

There's a 🔥 and a ☀ etc icons in the top but it doesn't say what they stand for?

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DeWayfarer · 61-69, M

The repeat is likely because of how many you follow. The more you follow the more posts you will see.

This as well is dependent on your reputation rating, which is a whole different topic. Yet a topic the admin will remain silent about.

Home (feed) is your main feed. Where you see posts for the first time.

Alternate (feed) is a feed you may create using the leavers button...

Hot (feed) is what the sites thinks you might consider hot. It's mostly the most popular posts.

New (feed) is based on your followers and what is "Hot". Again dependant on your reputation.

Pictures is just the pictures from the current posts. Also depends on what is popular.

History (feed) is the post you have at least viewed. It can be your own posts.

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You may wish to change the "Home" feed settings in the same leavers button or create a second feed.

I have called mine (alternate feed) "Followers" because it's set for replies from those who follow me.

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There's another area that you should check out whenever all of those feeds are slow. And that's the "Forums" button way on top of your main (Home) feed...