I don't think it's so much a issue of being a newbie it's an issue of "entitlement". And people who refuse to take responsibility for themselves tend not to last in an activity like geocaching - so these kind of responses usually end up being by newbies.
I just found my 75 cache today - still a newbie in my opinion - the other night I went out with my 4 and 6 year old children and got turned around on where I thought a cache was - the area looked a little hairy so I went by myself and ended up being tortured by stinging nettles! My fault, but my responsibility kept my children ok, and and the next morning --- I was out looking for the cache again.
I do think newbie's could be given a little more latitude - but hey geocaching "communication" is often an internet only thing - and we all know that it takes more work to communicate well via the internet.