Many of Schoology's interesting features require the use of Adobe Flash. With Adobe killing Flash in less than 2 years, many browsers and school IT equipment prevent the use of Flash entirely. At our school, for example, students are unable to use Flash for the majority of websites.
This causes a number of problems when my students attempt to use Schoology, the most recent of which is the video/audio recording interface built into the Submissions UI. My students are entirely unable to use this feature, which was a major draw originally for us to use Schoology in the first place.
Pushing this issue off on school IT personnel is not acceptable. I am requesting that Schoology move to using proper, modern website design and leave Flash before it's too late.