IMHO
1) New users or even old users may not know who to trust and may not moderate their trust list. It shouldn't be mandatory.
2) It will make trust list worse. Obviously, a few people can't look after many, so more people will be added to level 1 which gives them more power.
3) Current text is sometimes does not fit in all cases but in major cases, it does. If you or anyone can suggest a better text, theymos might consider it.
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3) some people on default trust even make a hobby of marking red on people
who haven't ever traded with them but with whom they simply disagree (see, for example, Vod vs MSCorp Key Sellers; or Quickseller vs. people who refuse to do business with him (
https://bitcointalk.org/index.php?topic=1023038.0, inter alia))
Trust feedback can be left even if they didn't trade. Doing a business with them to leave a feedback is worst idea IMHO.
You should read more about your "versus claims".
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It's not "pure" assumption. It is based on activity of the likely-scammer + assumption. These has saved many people.
All users should be treated equally and there is no excuse that the trust system isn't moderated and then giving the reputed members an upper hand. Now it is as if they call a person a scammer or trusted, their rating is counted. I would chose to either Remove the Default Trust Members or Moderate the Trust System.
I don't know if I'm right or not but is it true that the users who give Loans and/or work as escrow are mainly in the default trust list?
You mean "all" should be equal? It will make trust system a spamming system. First of all, people in default trust list are people whose judgements can be trusted in most cases. They, like all humans, do make mistakes. You are asking that police, common people and scammers to have equal power. Does that make sense? Trust sytem must not be removed or moderated. Obviously, admins can't get into these things everytime and moderate this sytem. They need to appoint moderators for trust system which gives trust system valueless because what if negative feedback was against these mods?
No. People who can be trusted won't be added to default trust list unless their judgements can be trusted. These people tend to work as escrow as they are trustworthy or give loans as they hav me enough BTC.