No that's Messenger itself that puts the emoticon in there. As (a) is the shortcut for
the angel is displayed even if it makes no sense...maybe they should change the
shortcut in the portugese version when they have to use (a) in some words.
That seems to be a little glitch in MSN Messenger.
They probably didn't add something like the [noparse] command to these "blah can't reply because you've blocked him/her" messages..