Recently i wanted to give cash anonymous, i feel there should be a button just like the credit option.

I mean like why not?

Hopefully it will come.

people do have codes they can post or giveaway if they wish to obtain cash anonymously

You can still send money anonymously, if you have their personal Bank key (found on the 'Banking' page) - but obviously, not everybody makes their key public. So if changes are made to replicate credit transfers, it would rid the use of these Bank keys.
I would like to see a transfer fee attached, if this goes ahead (10%, for example).