> (is it illegal to recycle your old tweets as toots)
no - some of the best thoughts are old thoughts, and the more of birdsite is indexed within the fediverse the less reason we have to ever go to birdsite.
That said. There's a tradeoff. It's a tradeoff that Reddit found early on in its history -if you do nothing but post things people could reasonably know, you move the fediverse closer to being a no-content coffee shop magazine. Be mindful and you'll be fine.
Welcome to your niu world ! We are a cute and loving international community Ｏ(≧▽≦)Ｏ !