Its a bit hard to let someone buy multiple phone number . for get 1 number in eu you should pay $20+ for number and should add credit phone bi weekly or monthly . so he will not register more than 10 account . if he did . he should spend $200 a day for only 10 account. so its worth for Newbie account thats still possible to get rejected ? absolutely not .
This forum adding merit system to avoid Spammer right ?
So with verification ID this forum can Avoiding Daily 500+ Register , imposible for he or she ( spammer ) will Verified all those his account because in photo verification will showing note like bitcointalk username Date Registered and with his ID .
Have you not seen the amount of SMS services there are that offer like 1000 messages for below 1 dollar? There was one in this forum offering it in the services section. Implementing a SMS field on registration wouldn't solve anything.
Also, no one in the Bitcoin community would be willing to upload their Identification to the forum, for several reasons. The forums been compromised in the past which means the hackers would of had the ID of hundreds of thousands of users at the time, as well as users that use Bitcoin are normally quite security conscious and don't like to give their name let alone their whole identification.