How on earth is that anonymous? All of your emails are on the same domain, and nobody else is using that domain. As soon as I see an email @jamesboehmersdomain, I know that it belongs to jamesboehmer.
Sort by cheapest renewal.
For example, you can register and renew a .feedback domain for $1.49 a year.
In my case I use my CC TLD. I'm in a generally stable nation that follows the rule of law and the administrator of the CC TLD has all sorts of processes in place that I have access to as far as regaining control of the domain if it's inappropriately transferred, making appeals, etc.
The extra $10 or so a year this costs is very much worth it to me as basically a form of insurance.