You should have put this in bold as well.
As you know, a signature campaign is a type of advertising that is shown under a member's profile through discussions in various sections of the forum without explicit indication. And I have never forced anyone to mention or recommend an advertised project directly in posts as this should be voluntary.
The essence of this conversation comes down to the fact that you need to respect the advertising opportunities that are available to you. And also the fact that in my eyes it looked like Wasabi was paying for Sparrow advertising. There's nothing wrong with saying "I use" (any brand you like), but when you say "I recommend" and list several similar wallets, then I believe that mentioning a project that spends resources on the campaign is an issue of ethics.