You know who you are, you are the people that think because you have a good grasp on where an apostrophe goes and never ever use the incorrect version of your or there that you have the right to let everyone else know about it.
You correct facebook updates and tweets, leave comments to just ‘let someone know of their error’ so that you can save the world of incorrect grammar and spelling usage.
Please stop it.
Some people have other talents other than writing. Some people have not received the education standards you did. There are some people who have this thing called a learning disability, they struggle their entire lives to get the words correct and go to great lengths to hide their disability from people like you. They should be free to communicate without the fear of correction. When you kindly remind someone of where to place an apostrophe you are only belittling him or her, usually publicly. It is not your duty to correct, save it for those who ask for assistance, I promise you there are thousands of us out there happy to ask when we need help.
Do you speak multiple languages? Imagine if you did and sometimes you mixed up the rules for different languages. I know I would rather have the linguistic skills of these people than the grammar skills you so highly regard.
Some people can whip up a fabulous meal or they might be crafty, they might just be the most excellent friend you could ever want. Does it matter that much to you if their written english is lacking?
Personally, I have lazy writing skills, I often have errors, some are typos and some are from poor (or non existent) proof reading. I also mispronounce the spoken word quite often. I hear and dislike the incorrect use of many words I don’t feel the need to jump up and tell people how to speak.
Take a break grammar police. If you understand the concept of what the person has written and they are not asking for someone to review their writing then let it go.
Lastly, words and grammar evolve naturally over time so while (whilst) you think that rule is not flexible, sometimes it is. And (never start a sentence with and apparently) words and language will continue to change whether you keep up or not.
Clairey Hewitt, self confessed over user of exclamation marks and often incorrect user of apostrophes.
P.S. Feel free to correct my errors if it makes you feel better.