kind of service that should be advertised here in the forum because the service is not available for everyone except people that have lost password or have issues with recovering their wallet seed phrases.
And also launching a signature campaign on the forum is not a guarantee that they are going to get trusted by everyone except when people start using their wallet recovery service with a good review.
Every company have their way of going Abuja their marketing and can chose whichever method they deem fit to achieve their target. Running a signature campaign here will depend on how big they are and if they have the finances to fund that but it will definitely worth it as it will show that they are serious. It's all about what they consider important to them and that is where they will channel their marketing resources to.
I think the main problem here would be finance just like you have mentioned and it will require at least some funding for few weeks of the team ever have in mind to run a signature campaign for their service. I have seen few projects fun a signature campaign and after few weeks, they ended it because of lack of funding. Running a signature campaign so depend on the management and the amount the team might have in budget to run it for some weeks. This is marketing and exposure of brand is important to create more awareness in the community.
Talking about market, it's a total different thing to trusting a company ability in showing capacity and competency in what they do, so for popularity they should be going for a signature campaign, but for everyone in this forum to have a clear idea of their ability before hand they should go for a review campaign, because it's true a review campaign we can attest to their services through the feedback of those that participated in the review, but in my own opinion, I think that they should go for a review campaign first before thinking of a signature campaign.