Virus checkers are not always up to date so they may not catch a problem. Throw it away. Forwarding the latest hilarious joke that someone sent you electronically is not always appreciated as much by the recipients as it was by you. It is particularly not appreciated in public forums. The writer of a message owns the copyright - even without registering it.
Lower case is easier to read than upper case.
Don't flame people in public for spelling, grammar, punctuation mistakes. This is not a formal publication medium, it is interpersonal communication and informality is the norm. If you must comment, do it in a private communication. If you are going to criticize someone by email, be very aware that things often sound harsher in email than in person. It is often better to sit on a critical message overnight and consider it afresh in the morning.