I'm not sure if the purpose of tilt forums is to replace RGP and pinside, but if so, yes, a tech section would likely be required.
The vast archives of information are still out there on RGP (or pinside) for many problems.
But if tilt forums is supposed to be a place like RGP used to be - discussion of new games, gameplay, and the like... It's probably not as big of a deal.
It always bothers me when I see tech questions getting asked/answered on Facebook on one of the hundreds of splinter pinball groups... So if a tech section here would prevent some of that, all the better.
Just some thoughts for and against.