While I do understand the Higher Limit kinds of prevent the players from putting up a cheap item at super high price, Lower Limit only prevent the item price from dropping when players/bots try to control them with massive amount of stock.
While we may hate any form of market controlling by gold seller (which the effect can be minimized by bot reducing measure), lower limit is actually causing more problems than protecting the market.
The alchemist and the price of potion is kinda in a dire position now because we can’t sell cheap ingredients at low price due to the flawed formula.