It’s in the rules to use your best grammar and punctuation. The reason is that there are people from other countries that read these forums. They learn english as it should be taught. when they come here and see slang and terrible grammer, spelling and punctuation, they may not even be able to read it.
This thread is just a giant mess of smug hypocrisy combined with Muphry’s law. Stay in school, kids.
Capital and capitol are homophones, words with the same pronunciation but different spelling and meaning. Homonyms are words with the same pronunciation and spelling, but with different meanings.