I've been running lnaddress.me for couple of years now, it started with a decent list of available domains but over time the cost of renewing domains for offering a free service became too much so I slowly started removing them as they expired.
last year I've removed lightning.by from the site because of the same reason - renewal price.
Fast forward a while - couple weeks ago I get tagged by fiatjaf in a telegram group where Sergey was asking who runs the site and that he purchased domain that used to be available there and would like to give it back to the service.
So lnaddress.me again supports lightning.by LN addresses thanks to Sergey, and I have a bit more motivation to run this free service a while longer to support this awesome community!