Could anyone tell me the best ways to level smithing and Speech.

I heard you can level speech quickly by keep intimidating Anton Virane during the Dark Brotherhood Questline is this patched? or does it still work?

Take a look here:

https://www.youtube.com/watch?v=Kn0aYIfnr6o

and here:

https://www.youtube.com/watch?v=UMei9gWeBcQ