Courtesy of@Chillaxed from the AVZ Thread. IMO, this is an...

Courtesy of@Chillaxed from the AVZ Thread. IMO, this is an excellent and simple explanation of why the bots are there and how they work:

The Bot is not buying at present. Its drip selling the small numbers of shares frequently to keep the last sale price pinned down .... so it cant rise. That leads to buyers holding off buying....because if they buy at 0.21 and then the Bot sells 1 share straight after at 0.205 ....then they are already showing paper loss....so when the Bot is doing that buyers hold back. That leads to sellers not waiting for their orders to be consumed by the buyers and dumping into the buy queue.......get a few of those happening and its a snowball......stops get hit.....selling increases and reverse line wipes happen. Exactly what the Bot wants so it can either keep the SP suppressed to either accumulate during the reverse line wipes.......or they are party to a potential placement at some stage in the future and want to get more shares at lower SP. Its definitely unfair and not a level playing field in the market.