From my experience, yes bots should definitely be removed from this game BUT they have reduced prices on AC items so we can easily purchase and therefor play the market going forward. Without bots i would not have the fortunate means to purchase more items, blame the people gullible enough to RMT.
The fact that SEGA does not introduce a minimum level requirment regarding ALL-CHAT spamming means i dont mind the spamming since i have external music playing. I have no problem with bots unless SEGA has shown me how their efforts to combat this in the long term, im still having fun regardless.
Unfortunately like you have expressed if SEGA does not put hard changes the game will end up being just supported by whales since AC scratches is how they make money, not f2p complainers.