Kindroid sharing: some questions

Hi, All.
I just discovered the r/KindroidShare, and got a few potentially stupid questions, which I would like to ask our friendly community.

1. Do I understand correctly, that the main use case is: offer some scenario, which others can experience?
2. Can a shared Kin be edited? or is he frozen? And if I use another's Kin, can I actually edit the backstory to my liking?
3. Language is English? or can vary? I think I saw a Kin with description in German once...
4. If I think I did some Kin cool and want to share, I should run the 'anonymization': edit a backstory, to remove any references to any other of my kins/setting, right?
5. Is there any benefit in sharing? Except for a case of a new player maybe using it as a referral? Or did I get the whole system wrong?
   Thank you.