"Love ya" as a closing does seem to have the effect of undercutting any resolve you might be trying to project, as History has pointed out time and time again:

"General Secretary Gorbachev, if you seek peace, if you seek prosperity for the Soviet Union and Eastern Europe, if you seek liberalization: Come here to this gate! Mr. Gorbachev, open this gate! Mr. Gorbachev, tear down this wall! Love ya!"

...and so on.