THX now i understand what he mean

I am reading this and the words of @gmaxwell

are what i dont understand, does it mean that the "brain wallet fools" sites, do wrong calculation ??
Does it mean, its better to use a, lets say, python script to calculate ??

Sry was sick some days, i figure out this was not the real r value so its ok. THX for helping

Hi i fugure aut that when you make a r-scan of some addresses it comes out like this

In Input NR: 2[global increment]

Resued R-Value:

In Input NR: 3[global increment]

Resued R-Value:

empty r value

or like this

Resued R-Value:
883afb923aa9b27e98e7433d406fff17cd56
In Input NR: 75[global increment] 160014d23a0b48af87476bc3aea2b229b70f18743cf81b

short r value

what does this mean, both are my addresses and start with a 1....

i read about it test it and boom ... makes me a bit nervous.