Is it permissible to post da'wah-oriented and scholarly comments on accounts that display pictures of unveiled women, given the ability to block advertising images and prevent their appearance?

It is not permissible to access the pages of unveiled women without a شرعية (Shar'i - Islamic legal) need, for fear of looking at their forbidden images. Even if it were possible to block the images, commenting might lead to deceiving followers and guiding them to these pages.