Giving a lot of lattitude to all of the members here on their use of written English should be encouraged.
As I regularly see about 20 gross errors in the language on these boards almost daily, it only takes a second to realize that English may not be the poster's native language.
That being said, some of the worst poster's are English only writers to whom English IS their native language.
Granted, the language does have some odd parts that almost everyone manages to mangle at one time or another, especially contractions, but as long as the main idea of the written passage is understood, we should be able to see past a lot of these errors.
When I do see a continued "error" of the language, I have been know to PM a person and gently explain the correct word or phrase to use. Most of the time this help is appreciated. Every now and I'm told to "mind my own business". It's not a real problem either way for me. I've tried to help and it was either accepted or rejected. Move on!
As a former proofreader, most of the posts in ALL forums give me pause at times.
I also admire those who can converse, and write, in more than one language as I lost that particular set of skills many years ago and now that I no longer travel to Asia, my Mandarin skills have been reduced to junk status.
So, let's try to cut some slack to those who may have a few problems with writing English. It's easy enough to recitfy without some type of culture clash in the process.
Even governments are not immune to spelling errors in English. When I was riding the high speed boat running between Kowloon and Macau every other day, I got to see this lovely piece of work!