Bitcoin users frequently generate new addresses for each transaction they make, which greatly increases the number of bitcoin addresses being used to receive money.
Would it be possible (and profitable) for someone to find collisions in the bitcoin address space in order to steal money?
If we get someone bitcoin address we can do it for what ?
We cannot steal anybody's funds if we only has their address, we have to know the pricate key to access the wallet.
So, addresses is not vital thing.