No, it’s kiddy talk. It’s not new, either. The electronic mediums are fairly new and still sorting themselves out, but if we choose to communicate in English here, then that’s the language we’ll be asking for.
When you can’t read, write or type fast, the details matter less because you’re going through the material slowly enough to “get” most of it (assuming you are a native English speaker, which many of us are not). But someday you will learn to type and read faster. I think if I work at it I can type about 100 wpm. Regular English is easier than trying to “make stuff up” as I go along. As for reading, known words are easily recognized when you’re going over them at highway speeds. I have to slow down to “translate” words and abbreviations that aren’t common. They are annoying.
The other reason using a real language is good is the one I’ve mentioned many times before. You just might need to be able to read and write well to get a good job someday. Consider this good practice. English is a lot harder than unicycling. It takes a lot longer to learn, and to really get good at it you need lots of experience! 
Did you mean boring, or something else? Should I try to figure it out? I will assume it’s a typo (everyone makes typos). Go ahead and be bored. What you call boring I call readable.
If you are posting from a telephone number pad, this kind of message is acceptable (for me) as long as it’s less than a paragraph. If you’re using a keyboard that has separate buttons for every letter, no excuse. Learn to write.
Nobody said it was. We’re just asking people to use it.
Anyway, the above isn’t intended only for Goats, but he made the best quotes to respond to. Somebody mentioned earlier the concept of guidelines. I think that’s all we need, and it doesn’t require any extra work to accomplish. If we had a set of voluntary guidelines posted in a sticky, or somewhere, we could refer people to them if they need help with their posts. From there the site might be able to “self-police,” by pestering chronic offenders.
Spelling and grammar:
Nobody expects you to be perfect. Though I try to post clean, I make plenty of mistakes myself, especially when I’m in a hurry. If you’re twelve, I will expect less quality writing than if you’re out of high school. However if you’re an author of dictionaries, for example, type at warp speed and never proof your work, I will bug you about it if you have constant typos. 
Creating new threads:
This is almost a completely separate topic, but I’ll offer my one main rule in this area: Don’t. I hardly ever create new threads. But I still find plenty to write about. Nobody should ever create a thread without checking the first few pages of existing threads and/or spending some quality time searching.
