The biggest question I generally have with services like this is "who is providing the advice?". We have an issue in our Reddit sub, where there is little transparency (obviously due to anonymous accounts) as to whether your career advice is coming from someone with twenty years of industry experience or an intern. I think the source of the info is relevant, as the recipient may want to weigh the advice based on the source's experience.
It appears Boost is using some AI that might automate some of the response, which will hopefully provide some good answers and perhaps have a few kinks with advice that doesn't quite apply.
As a bit of advice for the founder (saw you commenting here), perhaps a bit of info on the source of the advice would be useful to users.
Best of luck with the service, and feel free to reach out.