This disappoints me a lot , I put some external links in my articles to add extra information and sources, but now that everyone is paranoid (for good reason) I think no one will open any external link specially when it comes from a Minnow. Now I stopped making comments using external links, but when it comes to your post, you have to give it a little more context, now some of us will have to come up with new ideas to solve this issue, because every time a site becomes famous the cheaters come around.
Thank you for warning us @spiritualmax.
I think for now, we just need to elaborate more in our comments and posts about the external links that we are sharing. It sucks though.
Well, opening the links can't harm you per se, it's "logging in" on the site that gets you!