Add additional useless tags

Author: Flonky

content/docs/(guides)/tags/index.mdx

@@ -138,3 +138,10 @@ Worlds and Avatars may have these tags as assigned by the author.
 | `system_lizard`                                                                                                                                                                                                       | Meaningless tag used by Afromana                                                |
 | `system_me_I_read_them`                                                                                                                                                                                               | Meaningless tag used by Afromana                                                |
 | `system_slug`                                                                                                                                                                                                         | Meaningless tag used by Slorg                                                   |
+| `system_is_down`                                                                                                                                                                                                      | Meaningless tag used by monadic                                                 |
+| ` admin_gift_drop_ineligible`                                                                                                                                                                                         | Meaningless tag used by Faxmashine                                              |
+| `Internal Beta Subscription`                                                                                                                                                                                          | Meaningless tag used by MomoTheMonster                                          |
+| `my tail is prettier than yours`                                                                                                                                                                                      | Meaningless tag used by Sai                                                     |
+| `system_trust_yorha_sai`                                                                                                                                                                                              | Meaningless tag used by Sai                                                     |
+| `system_filthy_casual`                                                                                                                                                                                                | Meaningless tag used by Sai                                                     |
+| `system_info_cult`                                                                                                                                                                                                    | Meaningless tag used by Nayir                                                   |