It also worth bearing in mind that traders do not normally move the price for an extended period. In fact, traders are usually speculating on the direction and timing of future movements, which when correct, provide liquidity for others - they essentially smooth out the price over time.
When talking about liquidity, we are mostly concerned with buying and selling without moving the price. This should not be confused with changes in price over the longer term, which is more driven by demand and speculation of investors.
Ofc, one may have an impact on the other, as investors don’t want to move the price either, so liquidity needs to be sufficient to avoid this.
I’m very skeptical of any calls from traders demanding investors to buy or sell, especially anonymously and on a public forum too.