Just noticed this issue, so posting it here right away:
When Adblock is enabled on Linkbucks.com, the 5-second countdown happens normally, but then the 'Skip the Ad' button which leads you to the target page does not appear.
This happens only with Adblock turned on. If I disable adblock on the page, the button appears as usual.
I think this is a kind of new adblock detection, whereby if they cannot display ads, they don't let you access the target either.
I hope someone here can fix this by updating the filter rule.