bangkok108 on "Is my site being constantly hacked?"

Hi i
i am daniel writing from thailand
since i installed contact form7 + really simple Captcha on my website http://www.apsaraventure.com i receive many spams. it was not the case before.
question: i am thinking of getting rid of a Contact form7 on my website.
i'll just put my email address in : Me contacter"
is it Ok not to have a contact form on a website?
i am getting annoyed to received these unwanted mails to my yahoo mail box.
i don't understand the result of the scan it's too technic.
i installed a stop spammers control plugin on WP but no result
thanks for your advices
daniel