I learned that some ccTLDs can sell your domain before its actual expiration date:
The .CH, .ES, .FR, .LI, .PE, .SG, .COM.SG, .COM.AU, .ORG.AU, .NET.AU TLDs must be renewed 12 days prior to the actual expiration date. If not renewed, the domain will enter the redemption stage right away regardless of the number of days left until expiration.
This is why I'm always very hesitant to get ccTLD domains, they often have stupid rules and you can easily lose the domain.
I learned this from a situation where a fediverse's service .pe domain was resold to be converted to a spam blog.
Let this serve you as a PSA to double check all policies and existing user experiences very carefully before getting a ccTLD domain that you want to rely on and can't afford to lose.
UPD. Another example of a thing to watch out for — .in (India) disallows having any domain privacy, you must have your IRL data public in WHOIS.