Here's a reality check- people live aboard for ONLY one of two reasons:
1. they can afford to, or
2. they can't afford to live anywhere else.
I started my boating life for reason 1. I couldn't afford anything else, however I COULD afford a boat! I make choices based on positive reasons!
A liveaboard who is frugal usually does keep watch on all boats in the area, recycles (hey I found a sail in a dumpster in San Francisco that I gave to a fellow sailor in Providencia), we are generally educated, do tip the 20%, have little debt because we continually save for boat maintenance and the occasional cruise.
I have also pulled items out the skip etc., I even part fitted out a boat!
I now live onboard for the love of it! I just enjoy the lifestyle, and it does change people too. I have had a couple of landlubbers live with me for a while - in return for labour and honest company. They leave as a different person. They are much happier, healthier people.