[harshreality]

There are also a fair number of soho [wireless] routers with telnet enabled by default.

I guess that's partly due to memory footprint, or assumed memory footprint (dropbear being fairly small), by the manufacturers, and partly due to windows not having a ssh client by default, whereas every major OS comes with a telnet client.

[Dylan16807]

Keep in mind that for some reason they default-disabled the telnet client on Vista and later.