Is slide sharing from presentations on Twitter acceptable?

Speechless... Can't wait for #DasTTC next week! pic.twitter.com/T2VWhiSEdm

— Camilla B Sørensen (@Camillabirgitte) June 15, 2017

Is the presenter asking for critique?

What if it's negative?

Shouldn't we be teaching with our response?

Is it acceptable if the quality is poor?

I'm hoping to add to the debate and hope you will too.