That's what I'm trying to figure out. I also noticed something weird with the tags for it. When u type a singe word, like for example i was using a soundcloud embeded code and put " funk, Fun music, and funk instrumental" and for some reason when i click save it will show Funk FUnk FUnk Funk funk Funk funk FUnk over and over again it also does it with the word news.
This is a exploit that people will eventually figure out and im hoping to figure it out and patch it before allot of people start doing it to every ones oxwall site.
Now for the weird code i noticed when video's have foreign characters in it it sometimes breaks the code or something else in oxwall is not handling it correctly. Like Chinese font or similar symbols it cause the java script in news feed to break and also in the video's page.
This might be more of a problem with the script that parses a video url and extract the data. Im thinking the bug is in there. Try to run tests with videos that has foreign symbol font.
When I manually embed code i do not see this problem and when i enter url i haven't made it do it yet but some how people are doing it and i don't know if they know there doing it or not but it happens so little that i never really get a chance to do something about it because I'm usually at work and just delete the post for a quick fix to the site..