A question OP, How do you link up the three profiles?
Well, the fact that jimmy0143 has a looked announcement thread is highly suspicious and could warrant a negative tag, but I still don't see how they are connected yet with clear-cut evidence.
Not only is jimmy0143 the one who locked his announcement topic after he was exposed, but the other two accounts also, and I think they provide the same service, but with different contact accounts; I am 90% sure all accounts are multiple accounts of the same scammer.
Please help me protect others from this professional scammer.
To avoid another scam, you should not deal with newbie members because they can create new accounts with ease. They did not build their accounts and reputation for years just overnight, and if someone's service is attractive to you, khaled0111's advice would be ideal as you deal through the escrow service so as not to fall into their traps and send your money first and then receive the block.