What's the point of your site? Talking about bitcoin, altcoins, trading, everything about cryptocurrencies? It's better to do it in this forum, right? I've read some posts which pretty interesting and informative but not for the comments.
There are sites that try to "compete or copy" (not sure the appropriate words to describe it) and they actually pay people to post or comments on their sites, just like you do. But, paying 1000-5000 doge? I don't think it's really worth. If you have interesting content or informative site, no need to tip.