A social media streaming system (100, 200, 300, 400, 500), comprising: a server (110, 210, 310, 410, 510), comprising a server-trading module (111, 211, 311, 411, 511); and, at least one client device (120, 120A, 220, 320, 320A, 420, 420A, 520), comprising a display component (121, 224, 321, 421, 521), and an input component (122, 225, 322, 422, 522), wherein the input component (122, 225, 322, 422, 522) is configured to generate a trading request (130, 130A, 230, 430, 430A, 540, 550), and send the trading request (130, 130A, 230, 430, 430A, 540, 550) to the server (110, 210, 310, 410, 510), wherein when the server (110, 210, 310, 410, 510) receives the trading request (130, 130A, 230, 430, 430A, 540, 550), subsequently, the server-trading module (111, 211, 311, 411, 511) generates a trading log (112A, 212A, 313, 413, 512A) based on the trading request (130, 130A, 230, 430, 430A, 540, 550), wherein the client device (120, 120A, 220, 320, 320A, 420, 420A, 520) is enabled to delete the trading request (130, 130A, 230, 430, 430A, 540, 550) after the trading log (112A, 212A, 313, 413, 512A) is generated; characterized in that the client device sets up a deleting configuration, comprising a client deleting time configuration, wherein the client device is configured to automatically delete the trading request based on the client deleting time configuration; wherein the deleting configuration further comprises a server deleting time configuration, configured to delete the trading log from the server based on the server deleting time configuration; wherein the client device comprises a one-click-secured configuration, wherein while the one-click-secured configuration is activated, the client deleting time configuration and the server deleting time configuration are set to immediately execution. a server (110, 210, 310, 410, 510), comprising a server-trading module (111, 211, 311, 411, 511); and, at least one client device (120, 120A, 220, 320, 320A, 420, 420A, 520), comprising a display component (121, 224, 321, 421, 521), and an input component (122, 225, 322, 422, 522), wherein the input component (122, 225, 322, 422, 522) is configured to generate a trading request (130, 130A, 230, 430, 430A, 540, 550), and send the trading request (130, 130A, 230, 430, 430A, 540, 550) to the server (110, 210, 310, 410, 510), wherein when the server (110, 210, 310, 410, 510) receives the trading request (130, 130A, 230, 430, 430A, 540, 550), subsequently, the server-trading module (111, 211, 311, 411, 511) generates a trading log (112A, 212A, 313, 413, 512A) based on the trading request (130, 130A, 230, 430, 430A, 540, 550), wherein the client device (120, 120A, 220, 320, 320A, 420, 420A, 520) is enabled to delete the trading request (130, 130A, 230, 430, 430A, 540, 550) after the trading log (112A, 212A, 313, 413, 512A) is generated; characterized in that the client device sets up a deleting configuration, comprising a client deleting time configuration, wherein the client device is configured to automatically delete the trading request based on the client deleting time configuration; wherein the deleting configuration further comprises a server deleting time configuration, configured to delete the trading log from the server based on the server deleting time configuration; wherein the client device comprises a one-click-secured configuration, wherein while the one-click-secured configuration is activated, the client deleting time configuration and the server deleting time configuration are set to immediately execution.