Yes, I'm talking about myself :) I know I'm worth more, but that doesn't help if the buyers with money to afford it aren't here. I'm exploring remote, we'll see what happens.
Articles pay range from $150 to $500. It’s not difficult to get an article per day done if you have enough commitment.
The second way is least profitable short-term but more rewarding long-term. Start a blog. You’d be surprised how many random people contact you through your blog looking for devs. And some of them are very good clients.
By the way, who buys such as articles at those rates?
Still, even your €450/h is less than csomar's $100/h, which they are apparently earning in a third-world country.