If you're worried about your Adsense earnings related to an upcoming HTTP to HTTPS xenforo site migration, don't be. If you do a regular Google search you'll see lots of problems in past years, but I made the update yesterday with no impact. I double checked all of my adsense code to verify it's already async with no mentions of http or https before the change. I added the https version of my forum (and sitemap) to google webmaster tools when I was done. No problems! Don't let this concern be the thing that scares you away from making the change.