Think of ads as spam. There are a ton of spam filters, nevertheless spam cannot be eliminated completely. Ads are even harder to remove since they represent a revenue stream. THE revenue stream online.
39 karma · joined November 28, 2014
A service such as yours offer the value of not showing ads, which for some niche is something worth paying for, so a subscription based service seems natural.
It's a about a blog entry of a self taught programmer who was changing technology stacks back and forth, I suggest you to read it.
As he concludes, the answer is to focus. IMHO if you don't enjoy .Net and you want to change it, go for it; you will need motivation along the way and if certain technology doesn't give it to you then learn something that does and STICK to it.