I would rather someone only talk to me when he needs something, rather than sporadically wasting my time by engaging in useless platitudes, when neither of us actually want to.

If every acquaintance "touched base" with me "once-per-X", I would have a limited number of acquantainces.

Don't pretend to be friends with people by bothering them, unless you actually need something, and even then, preferably try to make it mutually beneficial.