I couldn't find the edit button, so I'm posting again to flesh out a little bit of what I was saying. Generally, I'm a man of few words (spending 6 years in a monastery will do that to a fella), but since Gandalf thought my comment was insulting, I feel I should elaborate a little more.
The first verse of the Tao Te Ching is:

The tao that can be told
is not the eternal Tao
The name that can be named
is not the eternal Name.

Therefore to put a label on yourself like, "I am Taoist" completely negates the most basic principles of the belief system. It is about doing away with labels and names, and just living.
In addition, the two words, "I am" go against the fundamental taoist practice of Wu Wei.

To claim that your are Taoist is similar to claiming that your are enlightened. You may follow the Tao, but to claim that your are Taoist is like claiming that you have attained perfection. Semantics? maybe...but I'm willing to argue semantics when it's the difference between everything and nothing.