Sauruz wrote...
That actually brings up an interesting question.
What if some people just got onto a planet with less-developed species, abandoned all technology and lived like the locals? Would the Reapers even still consider them part of an advanced civilization?
This is an interesting question. They don't even really have to abandon it. Just bury it, deep, and live like the locals topside. Yes, they would be considered part of the local civilization. There are billions of stars in the galaxy. The current advanced civilizations span only a small fraction of them. They could find a habitable planet whose mass relay had not been unlocked, settle, take whatever tech they needed, do whatever they needed.
It would take perhaps decades maybe centuries before the reapers would even look. Bury their technical knowhow deep in archives, autopilot their starships into the sun. Then in 1000 years when their civilization has populated that world start opening that archive and advancing, and dominate the galaxy, and take on the reapers while they sleep.
Like I said, if you look at the stargazer it is an Asari. We gave them hell. They did not do a complete reaping. Heck that might even be Liara or her daughter. Or we gave civilizations time to build more underground archives like the Ilos. Wiping out a galaxy this time is going to be a hell of a lot more difficult for them than it was for the Prothean Cycle. We can move around. Hide. They couldn't.