Teka. Minsan nakakadetect siya as INVISIBLE ah? Naguluhan ata ako.
there are three types of appearances ata sa Y!M. one lets you be ONLINE, another lets you be INVISIBLE, and the other one is a mix of both; you're really ONLINE, but there are users where you can appear invisible.
for the latter, you're online to everyone, and invisible to some. pag ganun ata, it tells na ONLINE. pag invi ka to everyone, it tells na INVISIBLE.