I find a lot of posts containing incorrect spelling. If one puts aside regional differences and typos, it still leaves a lot of words that are either misused or spelt incorrectly. This reduces the quality of a post, and can be the reason a post is skipped over by a merit awarder. This is because it shows a lack of care, and disrespect for other members reading the thread.
It's really easy to make a quick check - just copy the word into a Google search box, and hit enter. This will either confirm your spelling, or suggest a correction. Also, it will indicate whether the word is apposite. Just look at the first few search results, and you will see if your use of the word is correct for the context of your post.
Your right, Wrong spelling is such a big problem and it may causes misunderstanding of the readers when your posting something.Actually we are not all perfect and we are not all fluent in spelling or say the words in english languange , So for me it is okey if sometimes we do wrong spelling but be sure it's not you doing always.