I think they delete your domain without warning or notification if it stops serving (e.g. server goes down for a while without you noticing). That or their rene

I think they delete your domain without warning or notification if it stops serving (e.g. server goes down for a while without you noticing). That or their renewal reminders were not working correctly at some point. "Lost" one of my domains that way (was able to re-register it once I noticed). They're an option for fun projects that you don't expect to last a year and don't care about, definitely not for anything serious.