I have a book that is a wishlist book ,however, it has someone's name written inside the front cover. This is how I received the book from another member.  Is this book actually postable? And if not how can I make this book available to someone who might want it? Not necessarily interested in the credit. Just want to share a wonderful book. Thanks!

A name inside the front cover does not make your book unpostable.  If it is otherwise postable, feel free to do so

Writing on non-text pages is acceptable and that includes names, inscriptions, dates, etc.

Not only is it postabel, I actually think it is fun to get a book with an inscription in it- kind of a peek into someone else's life.