your attitude of the internet provides much insight to why you fail as a person. communication is communication, no matter the medium. especially since the internet is by far the no. 1 future medium of the world.
your point gets across, but it also comes with a message attached that you didn't intend for: you're dumb.
I. Capitalize the first letter of every sentence unless you are quoting something that was originally lower-cased.
II. "of" is not the correct preposition to follow "attitude" in the context that you are using it. It is always either "attitude towards" or "attitude about" in the sense that you are trying to say. The only time you would use the phrase "attitude of" is if you were use a characteristic afterwards (such as "his attitude of optimism" or "their attitude of jealousy")
III. "especially since the internet is by for the no. 1 future medium of the world."
There are several things wrong with this sentence.
1. Because you started the sentence off with the word "especially", you have created what's called a dependent clause. In order to make this a complete sentence, you must either add something before it, combine it with the previous sentence or enclose one of your thoughts in parentheses or dashes.
2. The proper way to make abbreviations is to capitalize at least the first letter (such as the word you used, "number"). I'll show some sentences that work:
-"Communication is communication (no matter the medium), especially since the internet is by far the
No. 1 future medium of the world."
-"Communication is communication---no matter the medium---especially since the internet is by far the No. 1 future medium of the world."
-"Communication is communication, no matter the medium. This is especially true
because the internet is by far the No. 1 future medium of the world."***
-"Communication is communication, no matter the medium (especially since the internet is by far the No. 1 future medium of the world)."
*** - Indicates the most grammatically sound sentence.
IV. Anyone can be a language Nazi. Whether words are spelled or formed correctly, the important part of communication is that the meaning, intention or thought is portrayed to the reader. The internet is a place where this is particularly popular due to the fact that you don't have to write "I'll talk to you later" and can cut the time in half by just writing "ttyl".
Communication IS communication, and that's why I don't think it matters whether it comes in a formal or informal structure (unless you're in a formal setting and it will benefit you in some way). You just need to get the intended idea across and that's all that's necessary. I believe this is why most people recognize music, art, dance and drama as being so much more expressive than straight words.