They do have a referral program. Here is my link:
https://app.contenvania.com/?sHt7JUg3dlXsTgtAfAzkhA==
I've been making a lot of money over there posting. The owner Georgiy was banned from PostLoop which is why he set out to make a similar site that improved things for both forum owners and writers. The biggest problem for forum owners is that they were getting low-quality posts and weren't able to keep those writers from posting on their site. That's why the owner of Contenvania got banned. He was refusing to pay for spammy posts.
The biggest problem for writers was the pay scale was unfair, and it was easy to be scammed by the forum owners (they could change the daily posting limit from unlimited to 5 halfway through the day and anything someone had written beyond those 5 posts were not paid). Although it's not perfect, Georgiy is working hard to fix all of those problems. Both forum owners and writers have direct access to the owner for any questions, comments, and concerns.
You can join the Skype group here to ask writers about their experiences and find out more:
https://join.skype.com/ujK3d829s2EI
Georgiy is aware that some writers are saying that he didn't pay them through PostLoop (which may have happened when PostLoop banned him), and is offering to pay for those posts as a sign-up bonus for anyone that joins Contenvania. Just let him know the situation.
Sidenote: The sign-up process is now instant, so anyone that signs up will be able to start getting paid to post right away. There's no multiple-posts or blog entry to write. You'll just start at the Bronze level, but soon there will be a test you can take to instantly get to the next level. If not, just keep posting and you can work your way up to the higher-paying levels.
I've been on board since the beginning and will gladly answer any of your questions about Contenvania's paid forum posting. :)