Maybe instead of deleting discussions wherein some useful information might be contained, it would be better if the moderators would more strictly weed out such open posts in the first place.
The mods are volunteers that have actual lives outside of this forum. They don't have time to babysit every thread. I'm a mod on another forum which thankfully isn't as busy as this one so we try to step in and encourage members to argue via private message so save the thread from getting shut down. It's too time consuming to pick through deleting insults and retorts.
The Shadow Dac comment was great @2psyop