Laziness, poor education, and no spell checkers are just three reasons that come to mind.
I am trying to get people to spell correctly!
There is no specific language that consistently uses numbers to spell words. However, in some online and informal communication, people might occasionally replace letters with numbers that resemble them (e.g., "u" replaced with "2" or "b" replaced with "8"), known as leet speak or hacker's language.
With numbers and acronyms, use an apostrophe s. When in doubt, you can always spell it out.
That is the correct spelling of "parallel lines" (coplanar lines always a fixed distance apart).
400,000,000,000 (and you should always separate every three digits from the right with commas) is spelt "four hundred billion".
Badly is schlecht in German.
That is the correct spelling of the adverb "badly" (poorly, or fervently).
There are two reasons why I think they spell badly. One reason is that some people that are on the internet all the time type so freakishly fast that they mess up. Another reason is the kids nowadays have not learned correct spelling of words. A third reason may be indifference, and an uncaring attitude about education, presentation, and adherence to rules.
Always ---- ----
You could say... - Most people have words that are hard for them to spell. - I'm learning! - Will you be my portable dictionary? - Well, that means you will always be the Spelling Champ!
The letters in scramble will also spell clambers.
People use spell checks to ensure that the words one write are correct written. It is more easy and comfortable than to look in a dictionary book or an online dictionary.
always - toujours
The word is spelled miserable. It means to feel really badly, or very awful.
The correct spelling is cheesy (like cheese, or -idiomatically- cheaply or badly done.)
I spell it the same as you did, it is always spelt like that
That is the correct spelling of the term "online" (connected, as to a network).