He is asking for recommendation as to what he could use other then the modifications he has listed to achieve what he is after, apparently the ones he listed did not work for him.
From what you are showing in your screen shot would get really annoying but it would be affective in achieving what you are after however, you can install a modification from 3.8 that works well with my 4.2.2 test site, you
only need to import the product, no template edits.
There is no accept posting rules button but, you can set posting rules for every forum you have with different rules if need be.
I would use this with stipulations set in the posting rules as to consequences if posting rules are ignored or broken.
Feel free to post in this
New Thread Rules, 3.8 modification any questions regarding it and I will be more then happy to help out.