Inktomi Facts - are they true?

Hi guys,

I'm new in this forum but not with search-engines though. In 1985 I wrote a thesis used today by search engines frameworks and since then gained much experience in the math field of search engine. Hope I can contribute to this forum

However, I can't understand Inktomi at all
For many keywords/clients I have great success, but for some keywords Inktomi just doing the opposite expected.

Here are some facts I found and want to hear your scholarly opinion:

FACT ONE == Inktomi is not playing fair. For instance it crawled first the robots.txt file, ignoring "disallow" tag.

FACT TWO == Inktomi has many bugs. This is the reason why Yahoo are not using Inktomi even though it bought by them.

FACT THREE == Inktomi is weird. It getting mad if he can't find the keyword in the English dictionary.

FACT FOUR == Inktomi has a poor relevancy results. For some keywords he fetches old pages from old domains with no external links instead fresh ones.