as a Warmshowers host to many folks through-out the touring season, i have concluded that i am pretty much turned off by the tourists who plan their tours with the goal of using "free" services as much as possible (warmshowers, couchsurfing, etc....). (now, i wouldn't lump free (i.e., fire station, church) / stealth camping in that regard, that's just being efficient). In comparison, i much more respect those who choose to be as independent and resourceful as possible (as in camping most of the time), and who avail themselves of the very occasional "splurge" of a warmshowers stay and truly will appreciate that cozy bed, hot shower, and hot meal as a real treat rather than the norm. really don't mean to sound judgmental, but i really don't look respectfully upon those who go out on a tour with the goal of intending to rely on the generosity of others as a prime resource.
on the main topic of this thread, i cannot imagine trying to eat on $10/day, much less survive all-in per day on that little. what kind of fun could that be ?