I don't like sending bitcoins to an anonymous address without a name attached. If you send it to a wrong address, you can't reverse it.
Doesn't Bitcoin bounce back the transaction if you make a typo in the address?
The likelihood of a mistyped address being valid is tiny.
Not if you ctrl+c , ctrl+v, without the ctrl+c registering. It's too long to type by hand, so ctrl+c/ctrl+v is your main source for inputting addresses.
One address is easy to check with your eyeball.
10 addresses is a little more complicated.
and if THEY send you an incorrect address from an address that was stored from THEIR previous transaction, even though it's THEIR fault, YOU lose your bitcoins.