I love the new additions, but it leaves some things to be desired.
Nobody will ever link to youtube videos, or copyrighted content. Linking will just add another step, and as seen by the huge want for a thumb next button. Funnyjunk users do not like extra steps.
I understand why you want content editing disabled after 30 minutes. There are some fags that post ads after their posts get popular, and they do other naughty things.
Here are my solutions to these problems:
1. Add a place (like the youtube videos) that you can put a link to a picture instead of uploading it. This will take away the extra step of clicking a link and also safe space on your server. It will also make it easier to spot some reposts. Also clicking on the picture can take you to the site it came from
2. Make content editing something you earn. Only high level people who can be trusted to use it correctly could use it. Or you could have a ban/report system like is already in place.