I read sometimes from people that seem to be working with rails since longer, that one important lesson they learnt would be \"Don\'t use scaffolding\". Also on irc I read c
I think scaffolding is very good to check out the new stuff of new rails versions (for example now in rails 4 the params permit stuff in a controller). You can use it for fast prototyping.
Often it is simple not necessary to generate a full scaffold..