Quick answer is:

It’s what was fast to deploy, and I liked the alternate option of using the telegram bot.

Additionally, I do not keep an exorbitant amount of sats in it.

I like the TG push notifications when I receive zaps as well. It’s just what I used from the jump, it’s worked perfectly, so I just haven’t needed to change it.

I did also have WOS and I liked having a vanity address: hacker@walletofsatoshi.com

And I do use alby as well for other things.

Also, my TG username serves as a vanity address: fiber@ln.tips etc.

No real fundamental reason.

Hope this helps in your research!

PV🔱👊