"-To ensure a safer exchange, orders for certain items placed by waiting adventurers at the same price, but not necessarily at the max price, will be carried out not by a first-come basis but in random order"

I think it is strange that items should be fulfilled randomly instead of in order.  Filling pre-orders on a first-come first-serve bases makes sense?  No?  How does making an item fill randomly make the exchange safer?  PA felt the urge to make the RNG part of every part of the game?

I do not believe what was said about "not necessarily at the max price" because I have been ordering hard black crystal shards for a while and it seems like my orders fill in 3 at a time.  Is it because there are only 3 hard shards being sold every few hours?  No.  It is because the marketplace item at the max price is being filled by RNG.  Also, hard shards are worth less than 10 billion silver.  There are several items that are sold out on the marketplace.  Furest furies, rough/polish stones, etc.  Are these all being filled by RNG?

What about when multiple items are listed for sale at the same price.  Are those sold off by RNG as well?

What is wrong with the first-come first-server basis?  It makes the most sense.  The people that have been waiting the longest get the items bought/sold.  

Or is this about inconveniencing 90% of the population so that the 1% of the population which uses BDO to make money can be hindered/caught?

Previously items sold to orders at max limit pirce was random, but on other pirces that was first-come first-serve.

Guess they now changed it, so on those certain items if there are multiple orders at 15B (while the max pirce is set to 20B), it still RNG who get it at 15B instead of first-come first-serve.

This is the way the Old Market place used to be and what made it so toxic, at least they didnt revert the Closed Bidding as well as sniping/click to bid.

There were some really good ideas out there including Chris Pollie that mentioned just puting Weps in a Box based on level and then Condense all classes instead of the way it is currently that will also stop market manipulation.

if i remember right  the market sells in this way...

if item has under 100 PO  then it sells in order

if market has over 100 PO then it starts to sell in RNG

so personaly this change isnt that weird and its a decent way to try to stop RMT issues

There is no difference between having 2 preorders and 10000 preorders, it works the same.

All of this was to make RMT harder.  You can't have somebody pre-order at a price nobody is using and than use that to fill their order.  Now, you list it for below highest pre-order and in that 15 min, you will have basically everyone move their order to that slot and that gets sold at random.  For those who are not doing RMT, this shouldn't be that much of an issue.