I wish Avast settings were synced with my.avast.com (optionally).
Each time we reinstall Avast we need to backup/restore manually.
All Antispam (white and blacklist) settings are continually updated and we lose each time…
I also give up on using Antispam due to that…
Which would come in handy if you have other relatives systems linked to your my.avast.com account.
Also there have been of reported problems in the forums, with backing up settings from the avastUI.