By searching for some wods that are ORed together is like making two or more seperate queries. If you wanted to search for three keywords that have no relation together ex: car, kitchen, garbage you should do three seperate searches for each word. But with boolean arith. you can simply type car OR kitchen OR garbage and have the same result. By doing this you have just saved some bytes because you send only one query instead of three. All gnutella clients can do multimple searches so it is up to the user to make them, you cant stop someone of making too many searches (and getting too many results also). Also the OR combined with the other boolean arguments provides a powerful way to search. Read the example above to my previous post.

I also agree with gnutellafan for using signs instead of AND OR NOT words and for the other search parameters.

By this way the Gnutella Network will become more "healthy" and avoid uselles search results.