Added ban rules: automatic ban when sharing rate is lower than 0.1

Dear Yezi:
This site has always had very broad assessment requirements for members. There is no novice assessment, and it has been extended to 60 days if you do not log in. However, the management team recently discovered that some members use the rules to suck blood like crazy, do not upload, do not keep species, and download frantically. caused a certain degree of injustice. After discussing the newly added rule of automatic ban when the sharing rate is lower than 0.1, the rule is actually still broad, and it will be decided whether to increase it again depending on the situation. The development of the site is inseparable from the contributions of all members. I hope that all members will participate in species conservation and make progress together.