Captain Obvious was probably on leave for the weekend. But he's back!
The ways described above can and should be used with accounts that already have some stuff on them. For instance you have 10 ref and some paints on a F2P account and you want to make them tradable.
But for those, who are just starting their farms I can offer clean premium accounts. Yet account selling is against the steam agreement. So I guess you'd better add me on steam/skype or just pm me. Just to make sure that no accs get blocked.