Disappointed from the peoples!?

[Soroush]

Well, don't be disappointed much. Badoo is not a very much respected app and has so many fake IDs and also people who don't care about answering anymore. at least use Wechat's "shake", it gives more results!!

your reason of finding "friends" is unknown. does it being a boy or girl matter?
if it does:
I suggest okcupid.com, it's the best free website of online dating (also has an app). there will be lots of questions about your personality and you can choose which country's girls you wanna chat with. just don't go saying just "hi!" to every girl you like, first message has the utmost importance!

If it doesn't and you just want some friends:
this way, I'd say go play an online MMORPG game or something similar, find friends of friends on facebook, or join a forum or community. after some time spent and gaining trust, you can exchange emails and facebook pages to strengthen your friendship.