I think we have a little misunderstanding here: our themes do not support Twitter cards, just need your twitter nickname to display the share button visible on the posting page and/or in the footer the follow button.
I’m talking about Setting section “Twitter Cards”. Not about the “Share Buttons => Twitter share button” in Themes.
For what is this card sections if it’s not working? For self made themes?
And is there a way to include my Tweets on my page? Or is planned? Is it reasonable?