i think this could led to the creation of a new type of forum with new types of features and possibilities ( i dont know if call it forum, maybe we should look for another name ).
One of the possibilities is creating a new tool for constructing collective knowledge based on consentuated arguments of all participants.
Arguments can be confronted and expanded by discussion in the forum and by a mechanism of votes that would allow some arguments to be expanded or to survive.
But the question is :
What should guarantee that the consensuated arguments are "better " arguments or "better" knowledge or true?
A bunch of people votting is sufficient for taking good decisions? or we need another mechanism?
what do you think?
If we find a way of generating good decisions these technology has a lot of potential and can be useful in many escenarios.
Imagine for example creating a constitution in these way, where all the peoples of a country takes part on the creation of this constitution.
Which mechanism can we add in order to guarantee that the knowledge created at large scale by this technology is good , useful , smart knowledge?
The basic concept would be something like you pay to store data in the blockchain. I am not sure you actually want a regular forum. It would really depend on your objectives. If you want to give people an anonymous platform and make it free, it will surely be filled with those trying to profit.
It is an interesting idea though. Datacoin does this sort of thing. I'm sure it is implemented elsewhere in some manner.
Putting a nice forum frontend on a blockchain would definitely make for an interesting userbase and could have some great uses.