On the one hand, I'm single and if I wanted to I could also blow a few grand on emoji domains for an experiment, then I could. On the other, I'd be taking a few grand from my savings for my mortgage deposit.

This isn't about relationship status, the author of this post just has money to burn.

And even if the author expected to get their money back through paid sales...they're on the hook for those accounts now unless he personally writes it off.