just look at cars101.com and yeah you can't trust craigslist adds 100% ever....not even the year is always correctly listed, so just go into with the idea you need to verify if you're looking for a very specific year or fact like timing chain.
"replaced" timing belts are't worth much IMO because the belts rarely break anyway - it's the pulleys, namely the one lower sprocket, that fails and takes the belt with it. granted belts can fail but stats don't indicate any compelling reason to concern yourself with only changing a timing belt on those engines. if i bought a car with a replaced timing belt i'd be replacing the pulleys and tensioner and in the rare event they were replaced i'd be making sure they're Aisin or Subaru parts.
In my first tries, long ago, I thought nothing of changing only the belt (toyota, pardon my language). On the second change, same car, thought to check the pulleys. Yikes!. From then on it has been WP, pulleys and belt. On those, usually the oil pump seals as well.
Yes, on those CL cars, or any where "my mechanic" did the work, I usually want to pass and go the Texan way.
I had some friends of mine (ex wifes, actually) that had an Outback and "our mechanic". Always complained about what was going wrong, but never caught on. After a head gasket job, knocking a few weeks later, an engine swap, then a seize . . . well, I guess faith can be blind.