add description of default user modes

mknod asked this at #freenode today as it seems undocumented

diff --git a/content/kb/using/usermodes.md b/content/kb/using/usermodes.md
index 597240bb204e25c3350d1f38d6559779ba75d2b6..b02ee2fe5c31dcf418a94182b54215278df35524 100644 (file)
--- a/content/kb/using/usermodes.md
+++ b/content/kb/using/usermodes.md
@@ -20,3 +20,5 @@ every time you connect—most clients can automate this for you.
 | R<br>(block unidentified) | Ignores private messages from users who are not identified with services. |
 | w<br>(see wallops) | Subscribes you to /wallops messages from freenode staff. Used infrequently to highlight interesting announcements from the FOSS community. You will receive important network announcements irrespective of this setting. |
 | Z<br>(connected securely) | Set automatically by the network when you connect via SSL/TLS. |
+
+By default, user mode +Z (connected securely) is set only if you are using a secure connection, and it may not be unset during the session. Usermode +i (invisible) is also set by default, and may be unset. Other user modes are also settable, but are disabled by default.