Perhaps some of the more experienced punters and traders can...

Perhaps some of the more experienced punters and traders can enlighten me about this. There has been a 'motivated vendor' hanging around with big sell orders around 12c. This is not unusual in itself, as other sell orders are starting to fill out the gap between 12 & 15c, but it was unusual last week when the next lowest sell order was a small parcel at 15c. I mean if you are a regular punter (human, not an algorithmic robot), you would sell just below the line of support right? Unless you really need your money back, or, you really want to move the share price downward.. thoughts?