If I unsubscribe from a spot, do I lose all my progress in it?

If Ты unsubscribe to a spot, all of the content which you've added to it will remain there, and any credit which Ты picked up for сказал(-а) content (such as a medal) will be reinstated once Ты re-subscribe to the spot, although the medal may not turn up for a little bit, as Fanpop will have to re-realise that you've uploaded useful content to a spot which you're a Фан of.

So yes, your medal will not be visible, but it will be available if Ты re-subscribe, as all of your content will remain there to be enjoyed by other Fanpoppers.

Also, if Ты have "made progress" on spots, this would suggest that Ты do like these spots, so why un-fan them? It would be better to simply unfan the spots on which Ты have not been and are not active on. Just a suggestion :)

No of course not, it'll all stay there. Try unsubscribing then resubscribe the Далее день and you'll see Ты won't lose anything.

No, Ты don't, it all stays there.

AND if Ты have a medal in a spot and unsubscribe, if Ты resubscribe, then the medal returns after a few days.

What do Ты mean by progress? If Ты mean that you'll lose all the фото and Комментарии and stuff you've posted, then no.
But if Ты have a medal in the spot and unsubscribe, Ты lose the medal.

what is the use of subscribing?