That's a cool idea for BTC addresses
This way you could be certain you are providing the correct address when copy/pasting. So, I would say it is good for security reasons too
It's a mistake to just rely on the first few characters of an address to assume the whole address is yours. An advanced copy/paste virus would just give you a vanity address that looks the same at the first (or even last) few addresses.
A vanity address is easier to recognize, but you should still check more than just "1VLAD".
Prefix: 1VLAD
Public key: 04909A25CC876B4575E05900870704FB372B74D291E57EFA38701A00DFDD24A681B4A3F9A8AEBED 9FEBDA1C2F597BCDD4BCD59D758C2899FF1A378E573737AE552
Done. Pick one:
Address: 1
VLADnooMRrNvra2RxJwg2FteHSpjaKhg (Balance:
)
PrivkeyPart: 5KLqgLT8L1fNNo6NnepnKY9ZRMyKhXJYmfce2WBJ84fVCRJWDyn
Address: 1
VLAD1TDqWAAow1ZUtdoKKgE7anqdjokb (Balance:
)
PrivkeyPart: 5JVTwhVQaAddNBNPea9m7CGEvVsR3UwmYtDoDQvi3LvqDbMQw5i
