hi as far as i am aware you can write on your user page if you wanted to a notice might pop up saying do you really want to recreate a deleted page but just continue occasionally pages are salted to make it impossible to recreate a page with the same name but there is no reason to think that your user page has been salted by putting wikipedia userboxes on your userpage you can say what your first language is and what other languages you know i expect there are hundreads of wikiboxes to cover all sorts of hobbies and statements sometimes when i have seen an appropriate wikibox on a user's page i use it for my page