Response from the great staff over at infolinks.
we are evaluating each publisher and advertiser on a case by case basis. Since we are committed to have only quality content, we reject publishers with websites that have adult content, gambling content, etc. The same is done with advertisers – we will not advertise adult content, gambling, etc.
If the website is not directly gambling per-se, but related to gambling we can possibly except them. Since our team accepts or rejects publishers and advertisers manually, there is a lot of human discretion here as well.
If they would like us to review their website again, they are more than welcome to write again – we always write back