Did you even read all answers ?
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Yes it does have some similar approaches, even though it is more than my OP suggests. (f.ex altering alerts). The ACE thing is more than "just" a feed page. But, like mentioned by other users, making yourself dependant upon Themehouse for what would be a important part of my content discovery part of the site, is not something I am considering at this point. From Xon? Yes. Ozzy? Yes. Bob? Yes. Etc.
Also, this huge ACE project won't stay free for long. Their huge (in price) 1K USD package will for sure include this eventually, hence the "
free for a limited time".
Feel free to respond on my previous post regarding your fear about "FB/Reddit" taking over XF by just using ideas from it to improve on XF as well, if you like. I believe it explains what differentiates this part from what you think is "too close to FB/Reddit".
Such functionality is not something you can simply uninstall once the developer pulls it. Your community will become accustomed to it and will complain badly. It will need to be from a stable and reliable developer who plans to keep their resources available for xenforo.