I found a mastodon security bug(XSS, But not that serious)
OMG I have to set this option to prevent to set my posts' language as EO because of recent patch.
(Related with CLD's problem)
#tootdon is archiving you. Even if you are not using it.
(If someone using tootdon boost/fav your toot, tootdon saves your toot into their private server)