[aguaviva]

No one is suggesting that these bots will in any way influence ("pollute", per your spin) Google search. Obviously Google won't be incorporating their output, and if anything they'll actively block it the moment they get wind of it.

Also, I didn't specifically say these bots would save users time "while searching", i.e. while using a regular search engine. Though I didn't dig too deeply into the T4P proposal (so I don't know what they're proposing), my own guess is that people would seek out these bots as an alternative to general-purpose search engines -- for example as a sidebar on their favorite news sites.