[salki]

can i create web site like stackoverflow.com with bbpress?
and the users can choose best answer?

[Robkk]

you probably can

you would just really need a good upvote/downvote plugin

this might be a good post rating plugin that has alot of filters to be able to do it

https://wordpress.org/plugins/wp-postratings/changelog/

but then you would have to customize the query of the topics replies to sort.

and of course enable thread repies with at least 1 or 2 threads.

i don’t have a step by step but its definitly possible

you probably need to go to http://jobs.wordpress.net/ and post a job so a developer can custom develop this for you.