I've been thinking of doing something different, but can't decide what just yet. Of course, I will keep on providing service to my hostees for as long as they need. Meanwhile, hosting is closed (temporarily), but hostees can email me at firstname.lastname@example.org if you need any help. Also please save email@example.com to your contacts in case the mail server goes down and you need to contact me during that time (that address is also included in my mail signatures)!
Jul 6 2019: unfortunately, due to resource limitations, I have removed the accounts of inactive hostees. I have your backups so please let me know if you would like to continue your sites.