You might not want to put your phone number or email in a public post. Better to ask them to PM (private message) you to exchange numbers. PM can only be sent by a member so you can exchange phone or email using a private method knowing your doing so with another member of the FGRV Forum.
Reading the forum post is totally public, as public as the bathroom wall at a rest area so not a great place for a phone number.
Spammers use "robot" programs to scan the web looking for email addresses. Posting email on a public page is a good way to get a lot of spam.
Good luck landing a nice Bigfoot