You can try to replicate it yourself in any comment on community.intercoin.org
I am not sure what has changed, and pasting URLs to images works, but pasting or uploading doesn’t seem to ever finish.
PS: If there is anyone who has experience managing and configuring Discourse, updating it to the latest version, and making sure it runs quickly, please email me (greg at the domain intercoin.org, we are looking for someone to help us part-time … hope it’s OK to write it here, if there’s a job board let me know).