Earlier quoted context omitted.
It is nonsense. I don't think there's a reason to do that except to scam users. Any UX-UI Dev / Engineer / Person with common sense knows that users would not understand the process. 180 days and my credit is disabled but I can reactivate it again anytime? what the hell? What I'm not sure of is what happens if you buy credit without reactivating the inactive balance... Does it reactivate the inactive balance or not?…
My wild guess would be that their finance people do not like a monotonically increasing liability on the books. Since some users will never use their credits, this is their way of satisfying the bean counters.
But there isn't really any reason to disable them in the software. Especially since they can be reenabled.
Just like if you have fully depreciated an office desk, that doesn't mean you march into that person's office and take it away. Sorry, this desk must be thrown out as it is now fully depreciated!
So I think it is an attempt at scraping more money out of their users.