I really hate that these days when you just mindlessly strg+c and strg+v into somewhere else it'll link the contentent (e.g. Pictures) instead of copying them.
Just opened an old E-Mail that I hazily wrote using the #posteo webmailer and some of the pictures are no longer available because they linked to mastodon posts (unintentionally).
/me Note to self: Always screenshot stuff. Forget that "strg+c" and "right-click => copy-image" even exist.