So, like any other industry, there are always going to be 'Cowboys', 'Rogue Traders' etc. As I mentioned earlier it is likely to be these smaller companies causing the problems, going for the big hit!
Yes, it is, but not necessarily from their charges. I think my sister and I were victims of a rogue small company, who (allegedly) managed to completely fail to find my sister and myself when searching for heirs for our-half brother, even though my sister's name was on our father's death certificate. I am totally sure that this smaller heir hunter company knew that if they approached us we would know exactly who it was that had died, and we would not need their services, so they conveniently found some cousins instead, who were not able to guess the identity of the person that had died.
The problem is that it would be difficult to prove that this was a deliberate act, and not just negligence. If we were to take the heir hunters company to court, they would probably have no insurance, and if the court award was big enough, it's quite likely that they would just declare themselves bankrupt and fold the company. I spoke to Neil Fraser about this (it was he who told me which company had dealt with the case, because that in itself is not easy to find out), and he said that F & F have insurance that would cover this sort of thing, and that he wanted to see legislation to force companies to have this insurance, because at the moment it is optional.
Fortunately in our case the cousins did take out Missing Beneficiary Insurance which paid us out, but in the end we had to settle for less than the actual value of the estate, because the beneficiaries had under-insured themselves, but the actual difference was not big enough to take court action over. Ironically, F & F had not originally persued my half-brother's estate, because at the time it didn't look valuable enough to pay their costs (although subsequently it was found to be a lot more than expected, because my half-brother had money from insurances and pensions stashed away).
I applaud Neil Fraser's frankness on this subject, and I hope that one day there may be more regulation so that the reputation of the more established companies are not tarnished by the actions of a few cowboy companies.