really who would've thought to put a post limit to be able to buy stuff...
We did - and for very good reason.
The rule was brought in because a seller dumped machines on the forum and tried to mislead some members. This was reported to us so we added the rule at several member's request. It is common to see this type of rule on forums. This site regularly has machines sold in the relevant section, and some bargains appear from time to time. If you are a contributing member (20 posts or more), then you can take advantage of the items for sale and you can sell your own machines or parts etc.
Prior to the rule, a new member could join, dump their gear in the trading section and never return to be a contributor.