I figured out a workaround

Do these things:

1. Click on the ‘toolbar toggle’ icon in the bar just above this window-a second row of icons should appear.
2. Copy your text from the other website. Before you paste it in the window here, click on the icon that looks like a suitcase with a ‘T’ printed on it. Then paste. This ensures that you paste as plain text and not with links (the links seem to kill your post).
3. Select your text that you just pasted, and click on the icon that looks like a parenthesis (“, top line next to the 1,2,3 icon). Should get all your text indented.
4. That should do it. Also for links to the article need to type some sort of text (like ‘LINK’) , select it, and click the link icon in the toolbar above this window, paste in the url in the popupwindow and click the check mark. That makes a clickable link to the article.