(Questions for guys): Is it kind of skanky for a girl to have posters of famous guys on their wall?

So, this question is mostly directed toward men, but girls feel free to answer. My friend, my sister and I have been talking about modesty and just in general the differences between guys and girls. Now I know if I saw that a boy had pictures of a famous woman on their wall, I would probably be uneasy with it. BUT, as a girl, I never really thought of a girl that has pictures of guys on their walls as a bad thing. What do you think? Is it detestable for a girl to have posters/calendars/pictures of (mostly famous), attractive boys on their wall? How do you boys see it as?