why this website is not affected by any panda or penguin updates?

I think we should discussed here more briefly due to panda and penguin updates most website get affected.

If you searched for keyword "buy facebook fans" then you can see a website in 1st position. You also see that that website is in top 1-5 for most facebook related keywords. Some keywords are highly competitive and nearly 45-60k searched per month.

I noticed that this website never ever affected by any google update so far. I checked the backlinks of that website, a lot of profile backlinks made. But this website is not loose it serp in any update. Which makes me completely confuse.

I also made same profile backlinks with target of 20 keywords, initially i noticed serp improvement, but after 24th I found my ranking decreases and now i am out of top 30.

So can any one take a look at the website and post their reverse seo feedback.

Since we don't know your page (not that you should share it), it's probably easier to comment on what that site does show.

I see good diversity on the backlinks and also good diversity in anchor text. It seems a lot of issues revolving around Penguin had to do with little to no variations in anchor text backlinks and or too many backlinks from the same IPs or sources.

Just my 2 cents.

Perhaps it had a good diversity of links - which site are you talking about?

Its the variety that works.
If he has say 5000 profile links then he will have like 10000 scrapebox comments,atleast few thousands contextual links,blogroll links and definitely high page rank comment backlinks.

Vary your backlink source.

Anchor variation was another thing targetted by the penguin update. If your lacking anchor variation i.e. mostly just targetting your main keyword(s) then you were probably affected by the new update. Vary your anchors as well as your links, diversity is key

Apart from all the above mentioned things,also check if the site has got 301 from other sites.