Actually some time I saw a number of projects that did the staking system and I saw nothing changed either the price in the market or even people's interest, maybe PIXBY has way in the future
I think this whole system has been integrated to whet interest in selling tokens. Now it is very difficult to raise funds for the development of the project, so the introduction of such a system (staking) is quite justified. If the PIXBY holds several sessions on different exchanges, then they have money and opportunities to promote the project further.