This might be a bad idea, but I often find myself wanting to correct or question someone's grammar/turn of phrase without derailing the conversation or coming across as an arsehole. So here's a thread where people can correct each other and get into silly semantic arguments without destroying the forum, and which people can ignore if they don't want to read corrections of their hastily-written nonsense.
I hope this doesn't come across as mean-spirited. Personally, I like to get corrected, so I hope to see my own mistakes highlighted in here too. I was very happy a while back to finally learn the meaning of "have your cake and eat it" and realise that the construction "eat your cake and have it" exists and works better!