Commas and periods and semicolons, most people have long forgotten where to put them and they are properly used. When this happens, you need help from the grammar experts. When you write an article, you want to make sure that not only your grammar is correct, but that there is no plagarism. Plagarism is a writer’s worst fear. While some do it on purpose, others fall into the trap unbeknownst.
Most people use the internet for inspiration for writing. Thankfully, there are free sites that allow you to check for plagarism. The internet can check for copied content and grammar at once. There are all sorts of problems that can arise from copying someone else's work. For students, copying someone else's work can be an instant failure for the assignment.