Fanmix etiquette

Fellow fanmixers? Here’s something I’ve always wondered…if someone posts a fanmix, and you see a song in there that would be absolutely perfect for one of your own fanmixes…can you just take it and use it for yours? Is that the actual point of fanmixes? I’ve always wondered, but there isn’t a Fanmix Guide For Newbies…

also, does anyone have a copy of Switchfoot’s Dare You To Move? I’ve got all my music here, we could negotiate a trade. :)