Regarding the reputational issue, it is a foregone conclusion that their reputation cannot be recovered nor repaired and they only have themselves to blame for their demise. You are right their reputation cannot be salvaged now.
About the searching for evidence about 1xbit paying funds to victims of their scam, I never found any evidence in this forum that can prove beyond reasonable doubt that they investigated and repaid stolen funds. Their forum representative seems to go around in circles spouting the same message but there is a complete lack of evidence on their part.
The second question is who exactly did you pay money (if any at all) and where is the evidence?
Are you able to explain why so many scam accusations are lined up against 1xbit?
We tried to do so in
this post.
I've been searching for answers or definite names/users that have been paid back their funds that came from the claims of 1xbit, but can't seem to find anything. It's easy to claim that you've done something in the field of crypto without providing any concrete evidence to back up your claim (CSW anyone?), and some people will believe but not us here.
I don't think there is any way 1xbit can salvage their reputation. It is way beyond salvation now.