Most employers will reject a candidate out of hand if they cannot express themselves clearly in writing. It is impossible to clearly communicate without good grammar: poor grammar can create a negative or inaccurate impression. A lack of punctuation may make you seem lazy and poor spelling may make you seem stupid.
Your CV is expected to have correct grammar, punctuation, spelling and formatting and if it contains lots of errors you would not expect to be employed. Your LinkedIn profile is just as important; it represents how you wish the world to see you and is an indication to an employer of how you will represent them. Better no profile than a badly written profile or to quote Mark Twain: “It is better to keep your mouth shut and be thought a fool than to open your mouth and prove it”.
All content written on your profile or CV will have an effect on how you come across to a recruiter, whether negative or positive. Before you apply for a job look at your CV and your LinkedIn profile and consider what you would like a potential employer to think about you and whether these documents are likely to achieve your aim. Studies by StudentGems (www.studentgems.com) show that 50% of employers discard job applications due to poor formatting, and the rising number of applicants for each role means that they are able to be more and more selective.
To avoid embarrassment write your content in word before pasting it into your profile! Getting a friend to proof-read your content is also a good way to make sure that your text makes sense and reads clearly.
Always be careful with the content you post and treat your LinkedIn profile as you would your CV. All employers will look at your online profile and if they don't like what they find they will probably hire someone else.
Half of employers have discarded CVs for including spelling or grammatical mistakes, with many admitting growing numbers of applicants have allowed them to become "pickier".