Brother No I am not saying reject rajam, but at least apply the conditions for its application, and have some mercy, do not try to spy on people or catch them,
Allah has hidden some sins and neither the government or other Muslims are authorised to pick out and search for the sins of others.
It is between them and Allah . Allah did not say that tawba is only accepted if rajam is done.
The law of rajam is more a deterrent to stop Muslims falling into zina because the law of rajm makes it a very high price to pay.
Most fuqaha say that rajm does not mean that the guilty is forgiven.
I would even say that this is a victimless crime no one is harmed it is one of the rights of Allah that have been broken, but of course the rights of the other partner in the marriage have also been broken, so it is not strictly a victimless crime.
I think riba causes zina, family problems, conflict etc. in societies. If people have money problems they will work longer, feel pressure husband and wife might become distant and soon they are looking somewhere else for affection. Riba is the root cause and a major major sin that should not be taken lightly, it is worse that zina because it affects everyone widely.