This has at least been educational wrt on-line sales:
- Communication - clarity, mutual agreement, and confirmation are necessary to avoid misunderstandings
- Show Me the Money- the best way to secure an on-line transaction is to send payment as soon as the terms are agreed on
- On-line Etiquette - Post your forum question in the spirit of gaining knowledge, without naming names, and without the intent of a preemptive strike to assign guilt