I was looking at the possibility of depositing Eos for gaining some cashable currency within a community but first I would like to know that whether such deposits are allowed on BBS or  not..

Because one of the use case of these deposits can be for running ad campaign but what if I made a deposit and later do a cashout . 

Whether it is allowed on BBS or not?

As you can see from the picture below if we take the example of Indfam currency there are four such methods to make a deposit depending upon a user suitability.  But I wanted to clarify it before making a deposit.