假设你是李明，最近你校的一份英语报纸正在校园出现的涂鸦现象开展讨论。请你根据以下要点写一封信给报纸编辑，发表你的看法。
(1)涂鸦丑陋难看。
(2)公共建筑物不是表达观点、感情的地方。
(3)禁止涂鸦。
参考词汇：graffiti 涂鸦，(在墙上的)乱涂乱写
vandalism 对公共财物的有意破坏
Dear Editor,
Recently graffiti has bee more noticeable in my college. I feel quite annoyed at them, especially when some of my classmates praise them as a kind of so-called art. Confronted with this impolite phenomenon, I can't help asking myself: what is wrong with today's teenagers?
In my opinion, graffiti is a form of vandalism. They are a mess and are ugly to look at. Meanwhile, walls are public places, and they should not be used to express personal views and feelings.
I really think vandalism should be stopped, and those who refuse to stop this bad practice should be punished. We should clear away these ugly expressions and drawings so that our college may return to its true self--a clean, quiet place for study, teaching and research.
Yours,
Li Ming