>Do you have any data to verify this
Not really. 4chan doesn't have such data available for us to archive. We have some estimated statistics like post rate that you can use to estimate unique posters. You can post every 15 seconds on /pol/ so if there are 100 posts per minute then that should be 25-100 unique posters per minute or 1500-6000 per hour. In reality there are other variables at play but you get the idea.
>He said you guys are CIA niggers and have record of all visitors and posters.
I don't glow in the dark and we only archive what's publicly available on 4chan.