So, just save often. And in case you forgot, you could stumble into an Old Olney-esque place at a low level in Fallout 3. Somehow, it didn't ruin the game. :hehe:
I'm not saying it'll ruin the game, just that it may make it so that at the beginning of the game you can't do anything, and at the end of the game you can do everything too easily. But then you could just switch difficulties.
If you stumbled into Old Olney at level 1 in Fallout 3 there would still be deathclaws, so I'm not sure what you're getting at. The "no level scaling" probably means what it did in Fallout 3 ("level scaling, but not in certain areas"). Also, MQ will for sure be level scaled, I know that. If there is actually no level scaling (you can prove it), I will scream with glee (not really).
Also, I should mention that a previewer saw a makeshift sign that said warned him of deathclaws ahead- more than you got in Fallout 3.
I'm fine with certain places being non-scaled, just there should be certain parts that are... like the geckos around Goodsprings should change from Little Geckos to Golden Geckos to Fire Geckos, so they're always a bit more powerful. There should be things like 'hotspots' for certain creatures, where you'll encounter Deathclaw regardless of level.
And I'm glad the MQ is scaled... but there'll still have to be grinding for certain locations, no doubt including some of the snow globe locations and side quest locations.