There are several untenable assumptions in your opinion:

"If you're a 'buyer,' the discussion (of ongoing auctions) only increases the interest level of the particular piece at hand, thus potentially increasing the number of bids and ultimately the final price paid."

The implicit argument here is that posting an auction link increases the size of the market resulting in a shift in demand and a higher equilibrium price. The first problem with this is; most of the participants in this forum are keenly aware of the Heuers listed for sale on ebay. Therefore, the impact on market size is negligible. Further, the resultant discussion may influence demand positively or negatively.

The second fallacious assumption is that the ultimate goal of a collector is to buy an item at the lowest price possible. While price is always a consideration, many collectors are concerned with buying high quality pieces and are willing to pay a premium for such. The more information they have the better decisions they can make.

"There have been a number of posts here regarding the explosion of Heuer prices on eBay, wouldn't it make sense that these discussions may be a factor?"

Here you are suggesting that an entity that has only existed for six months has increased the overall price of a particular commodity. There is no proof of a correlation between the price of anything and this forum. Also, the statement implies that an increase in prices for Heuer watches is bad and should be discouraged. Many collectors are happy when the value of their collection increases. To them an increase in prices is good news.

"And it seems that they don't seem to do anything about keeping the fakes/ Franks off ...if anything, the increase in interest, demand and resulting higher prices is what's bringing them to the marketplace."

The preceding statement is absolutely preposterous. You are equating Interest and demand, and implying this forum encourages counterfeiters to selling their wares on ebay.