Not prevented, just not shown by default. But yes, let the low rep users answer low rep users questions. Make the site feel like it did to new users today like

Not prevented, just not shown by default. But yes, let the low rep users answer low rep users questions. Make the site feel like it did to new users today like it did to today's high rep users five years ago. The site should discourage really obvious exact slates with suggestions.. But if someone has a small variation, let them ask it and get a specific answer. Unless the question gets many upvotes, high rep users don't see it anyway, so who does it hurt?