It reports so many technology used for "x.com". If you look at the source of "x.com" its just one single letter.

How does it deduce the technologies used or is it bug?

https://builtwith.com/detailed/x.com

I am surprised Google is their customer. Why would google be a customer when it has all information about all the websites on internet?

Its important to note "WeChat" was successful in China, which is not a democracy. State was already monitoring citizens every activity. Public knew about it. This is not a big deal for the public to combine real identity with sharing opinions. Anyway the are restricted by the govt.

This is not the case in democratic countries. Most people treat financial transactions and public opinion as separate entities. Commenting on amazon is way different than commenting on twitter. Integrating twitter with banking account is not going to be successful.

Is it better in anyway compared to i3?

Are the salaries per month or per year?

Where does one get a salary of £90,000/month?

Is this real?

> He refused all google stock, however, since they implemented map-reduce incorrectly, using a set of filters.

That was a reference to google filtering their presented results instead of being driven more by search results, as they advertise that they are.

> In the case of fb, he was outfoxed, because he didn't have the documents to prove that he created all the algorithms for matching faces.

That sentence was a nod to the accusations against Zuckerberg for stealing the original code for FB.

Of course, this was all presented in the context of the prodigiously productive Donald Knuth for your reading enjoyment. In this way, the comment was meant to show though tongue-in-cheek how great Knuth is for Comp-Sci. It was not an attempt to drag any company through the mud. That happens without me.

There is a wonderful alternate timeline where this is true!