Through my analysis of the BBS platform, there is a problem that most members of the BBS group fall into is in the process of purchasing publications. You decide to buy the publication for $0.3 or $0.88, but by force of pressure, members of the same publication want to buy the publication, so you may buy the publication for 4.45 A dollar instead of $0.88. This is a problem that most members of the BBS group face. We want to discuss this problem with each other. Is there a future solution on the BBS app?