Gajim saves password as plain text without additional warning
On Linux with Gnome user could expect that password for an account will be kept using a keyring. I was surprise when I found my password stored as plain text in Gajim's configuration. This feature were not active, but I wasn't aware of it.
Looking at code when required libraries are not available (or given system just doesn't support it) Gajim silently fallback to save password as plain text.
Gajim should display additional warning when user decides to keep password and there is method available which would allow to save it in the "safe" way. There could be also some info how to configure it.