what is the reason they say not to use analytics? just curious to know. why?

Well a lot of people think that using google analytics gives google too much information on all your websites and makes it easier for them to penalize or even deindex ALL of your websites in one go.

Penalize and deindex which is not taken from google analytics or web master tools. if you follow white hat technique then why your site will ban or deindex.

Google analytic s is give more information about out website. Google Web Master help to do google analytics, adwords and adsense.

Webmaster is too valuable to not use.

Both analytics and webmasters are very important to use for the better performance of website. I can't understand why they said, not to use analytics.

First of all what Google Analytics does is it uses first-party cookies and JavaScript code to collect information about visitors, how they interact with your website, where they came from, how they arrived on your website, which search terms brought them, and, most importantly for ad managers, whether they completed any of your site's conversion goals.It is basically for 'statistic service'

Google Analytics is a powerful website metrics tool. Take it for what it can efficiently provide you to understand your website's performance when it comes to Google search engine activities.

If you are being honest in all your techniques then I really do not see any reason as to why you should fret...

I am not satisfy with your post because i am using this last two years and i have no face any kind of problem

Google analytics and Google webmaster tools is a must have tools...

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I do black hat SEO for my websites all the time for years and I use Analytics and Webmasters and everything is fine. I never have any worry.

As usual, the SEO world is full of misinformation and myths.

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I also use Google Analytics for almost 2 years and didn't have any trouble so far.

But everything is possible if you are using black hat techniques...

Well I saw the thread where the OP had all 15 of his websites deindexed, now if you were relying on these sites as your main source of income, you'll be f'd

There is no harm in using Google Analytics and Google Webmaster tools as well. If you believe Google is fetching your good and bad information from our analytics account for penalizing you, then you are probably wrong. If you are doing something wrong at your website then sooner or later Google will discover it using its algorithms.
Google doesn't use Analytics report or webmaster tools for fetching site's activities.

Hi
Well a lot of people think that using google analytics gives google too much information on all your websites like visitors, Keywords visiters and makes it easier for them to penalize or even deindex ALL of your websites in one go.