If you need to solve a captcha, then you use the module. If you don't need to solve a captcha, then you don't use it)
There is no specific answer to your question, it all depends on the site you work with.
Thank you! it worked, i was using [[VARIABLE]]/Images.txt with expression, it was also giving me error but then i used it with string then it worked. I thought in string, variables values cannot be used :)