i was rejected again on postloop!

It is no use fretting about this. Accept the outcome of your writing and start reading books on grammar and punctuation and write an article for yourself every day for practice. Unfortunately when you write poorly, you cannot expect the site to feel sorry for you and accept your writing. I am not trying to be harsh, just realistic. Also go online and see if there are sites which can help you with coming up with good ideas for writing articles. But the main problem here is your English and your construction of sentences.

Same feeling! They said my english is poor too and no chance for review my account. I got 1.5 rated. I also feel frustrated. So many year of study... ... :( I know that my English is not good. However, not POOR... ... ?!

Even if they pay high for posting One post,It is good not to waste time there for getting selection there.I think postloop might have rejected more than the memebers it has currently!! I don't think that it is going to be success!

Don't feel bad, most native speakers are terrible at English grammar too. I don't how know strict postloop is, nor how your postloop posting differs from your mylot, but really the only issues I can see are capitalizing "I" (already mentioned) and a lack of comma use where there should be.

Don't you worry about being rejected. You'll get better in time. Practice makes perfect. Read more on all available English materials - books, magazines and newspapers.