I don’t think they’re getting more bold, they’re doing what they’ve always been doing. Their methods do have flaws, because they’re only limited to the technology they have access to. Several people are able to get a PS5 at retail price without dealing with a scalper, so while many are bought by scalpers, not all of them are being bought by scalpers.
Scalpers are just taking advantage of the supply issue, and the issue will cease to exist once Sony is able to ramp up production numbers and flood stores with them. You see this all the time with game consoles, and the scalpers stop when you can walk into any store and see several units on the shelf.
The Switch had two phases of scalping: the launch of the Switch, and the beginning of the Pandemic. Both times stopped when Nintendo flooded the market with units.
You see this in collectors markets a lot, including the retro game market. An item that’s allegedly rare, people pay a high price due to the demand and lack of supply. That is until people find out there’s more out there than they initially thought, or someone literally found an abandoned warehouse full of them.