Let me give you an example on this. Let's suppose my 100$ are stuck at 1xbit and i file an appeal or complain to them. Now it does not matter if fake people / accounts come here and says that their issues are being resolved. i would only trust them only if my own issue is resolved. So i think these tactics won't work not even in the short term.
It's a pointless tactic in this forum for sure, but it could help them in some other sites where their reputation isn't completely messed up. They have all the resources required to keep using this tactic again and again even if they keep failing repeatedly.
Some of the victims who claim that they recovered their winnings successfully pop in and out of this forum quickly which is a noticeable red flag.
Any scam casino or business which freezes people's money during months and years and then opt for paid shillers and agents to pretend they are people whose problems have been solved, it is not much about trying to safe face or reputation, since that is very hard and takes years or resettlement and yet people would be aware of what happened.
It is mostly about appealing to newbies around here and people who do not know how long they have scammed people, the objective is to fool them to believe it is a legit casino which is taking care of troubles, so they feel like giving them a try and deposit.