Posting Purchasing Info Comments or Topics?

Hi,

I like to provide links on author's social media and also links on where to buy the chapters for those who are kind enough to support. I don't want to post it somewhere that will get swept away by new comments but I also don't want to put it somewhere that no one ever reads. Do you read through the "Comments" section or the "Topics" section more often when you want to get more information on the story. I want to inform people, but I don't want to copy and paste the same 3-4 links under every comment that asks where to buy or read the raws/licensed english version.

Thanks in advance