When to take the anonymous out of secret admire

In this great world of personal and social Web networks, we are also inundated with various tools to let someone know how you feel. Not only that, you can do it anonymously in some cases.

Particularly on Facebook, people can send you virtual gifts anonymously or write in your honesty box that they like you.

While I believe that this can be sweet in the beginning while someone musters up the nerve to say something, it also has the possibility of becoming annoying. If you get enough of these messages, it can also get a stalker feel to it, especially if it has details about your whereabouts during the day.

In the end, it leaves you with more questions than answers.

What do you think about this electronically sent anonymous messages of admiration? How long do you think someone should send such messages before revealing who they are?