Ilya Reznik

I have started on convertkit. The growth was reasonable, but had to be driven from other sources (mostly my YT channel). The open rate was 80%. I moved to substack, same audience, same everything, open rate went to 60%. Not sure why. What I like about substack today is it brings people I would not have found. But it is a medium-term play. At some number of subscribers I will migrate it again...

Great idea! I think one place where this is really useful is people who already got the job. Often times we stop doing LC (which is all about pattern recognition) so when the time to interview again comes we have to start from scratch. Instead, a daily challange can keep your skills sharp. Great work!