Avast gains or loses users according to the judgement of each individual.
Some are aghast at the sight of an ad or a 'shopping cart'.
Some are indifferent.
Some might even like them!
I mostly use AIS (I don't recall seeing any ads there) but I'm a curious kinda guy so I like to keep at least one machine running the Free version, just to see what's going on.
All I can say is, in the words (I think I recall correctly) of Graham Chapman in 'Monty Python and the Holy Grail',
"
What an eccentric performance!"
If you truly are sufficiently offended by Avast marketing its own products within its own products to stop using their product, then just stop. Your non-use of the product will get the message through. And by all means tell them (briefly and pointedly) at
sales@avast.com and/or
support@avast.comIf you decide to keep using the product but would just rather not see the ads, you too can take a little time to tell them what you think at the above addresses.
In the meantime, , somewhat ironically, one workaround might be to take the advice from the most recent ad and change to "Avast for Business". It's no less free than 'Avast Free' and all the marketing is in the admin console.