I, for one, do like the idea of tagging stuff, since I might favorite a lot of stories but then years later it's hard to find a particular one, even if you do remember the general topic.
Tags for this would be really helpful for me, ergo it's not perfect for me, ergo it's good someone else is trying to make it better.
Since it's not affecting the original site, why would you want to stop them?
I, for one, do like the idea of tagging stuff, since I might favorite a lot of stories but then years later it's hard to find a particular one, even if you do remember the general topic.
Tags for this would be really helpful for me, ergo it's not perfect for me, ergo it's good someone else is trying to make it better.
Since it's not affecting the original site, why would you want to stop them?