[epo]

So open source means it does exactly what it claims to do? It sounds like correcting you might be a lifetime's work.

Consider the 'bug' that the switch value might be stored correctly but the software might ignore its setting.

[tsahyt]

Open source means you can have a look at what it actually does. So yes, after all it means that it will most probably do what it claims to do, because everyone (at least people who can code) could check and it takes just one person to have a look at it.