This gist just queries all articles from the frontpage of profil.at and counts the total number of comments made and the number of unique discussion participants.

gistfile1.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

from urlparse import urljoin

from bs4 import BeautifulSoup
from requests import get

ROOT_URL = "http://www.profil.at/"


def main():
	r = get(ROOT_URL)
	soup = BeautifulSoup(r.text)
	links = soup.find_all('a')
	articles = set()
	for link in links:
		url = urljoin(ROOT_URL, link['href'])
		if ROOT_URL+'articles' in url:
			articles.add(url)
	comment_counter = 0
	user = set()
	for a in articles:
		r = get(a)
		soup = BeautifulSoup(r.text)
		comments = soup.find_all('div', class_="nnw-flog-user")
		for c in comments:
			comment_counter += 1
			klarname = c.text.split(',')[0]
			if '|' in c.text:
				klarname = klarname.split('|')[1]
			user.add(klarname)

	print "Artikel: %d" % len(articles)
	print "Kommentare: %d" % comment_counter
	print "Unique Users: %d" % len(user)
	

if __name__=="__main__":
    main()