In last few months since my free course was published, I have noticed this phenomenon many times that price filter is not available for some days. Then it becomes available again. Have noticed that this usually coincides with the time of the year when promotions (read discounts) are on their peak e.g. Black Friday, New Year, Diwali (Indian Festival) and so on. I even wrote to Udemy regarding this and got standard reply that they constantly look ways to optimise their search and course discovery. And when asked for help or timelines, or ways in which students can discover my free courses, got reply that I can share course link with students directly. While these answers didn't really solve my concerns, let me tell you that you can be rest assured that barring few days, the price filter is available on most other days. I also post link to my free course on Facebook and other media sites and I constantly see students enrolling even during days when the price filter is not available. However, yes, the ones who mostly complete my course are the ones who discover and enrol into the course on their own. Trust this answer helps address your concern. With that my suggestion is to go ahead, build your course and spread your knowledge with others. Regards, Sandesh
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