Basically you can add whatever you want (whatever code IJ will accept/process) and then add the *noembed* code beneath that and it will remove everything.
For interests, you can make your interest list and copy the code by viewing source and just adding in html to change link formats like you otherwise would, then putting that code in your profile above the noembed link. Or you could just link up the interests on your own without doing that by just copying the start of the interest URL.