[fredoliveira]

While I can understand the principle that motivates your comment, I disagree. You could say the same thing about an operating system, a particular computer brand, the online services you use - anything. If whatever tool you use makes you more productive, it has a positive impact on your work, meaning you should most definitely use it.

I seldom think about whether something is closed or open if it helps me actually get things done. Why would I pick anything else (open or closed source) based on an economic principle if it made me worse at my job?