suppose i have a person profile with a name and a facebook permalink such as facebook.com/mycustomname what happens to that permalink after i delete the profile, will it be available for assigning to another profile or not?
That's a good question; I haven't thought of it myself. Logically a Facebook permalink which has been assigned to a user account, should not be available to another user account after the previous account has been deleted. Take for example URL facebook.com/jacksmith links to the profile of Jack Smith #1 and after Jack Smith #1 deletes his account this same URL will link to Jack Smith #2 who is a completely different person.
I've been working on creating a FB account and I just read that the new name will not be available once it's been used - even if you delete it.
once a fb name is taken, ITS TAKEN. It wont be available ever again. No matter if the user dies or deleted his account or gets banned.
Ofcourse, it is not available after you delete the permalink of your profile page. It is just link the blogspot blog, if you choose a name for the blog and later you go and change the name, no one (not even you) will be able to use the old name which you replaced. I think this is the perfect example of what happens to your facebook page url, after it is deleted. Just go on blogspot and try creating a new blog name and then replace it with another one. Then again try to get the same name which you had post at the first place, you will never get it back