It may be possible to create multiple accounts but its not considered ethical. You can create as many account as you want as long as your IP is not recognized as an Evil IP from the forum.
BTW, if your thinking Bitcointalk as job. I hate to break it to you, I suggest not to depend on it. If your here for learning, you'll be welcomed but if you think this as a Job you'll just be tagged and cannot join campaigns(JOB).
Yes, people on the forum do not appriciat when it become used for money making, even if almost everyone here doing that. So, as far as you do not plan to take a part in any paid campaign you may have as much profiles as you wish.
