This big warning gave me pause, too. Why not have a compression option that automatically checks the data after compression (by decompressing and checking again

This big warning gave me pause, too. Why not have a compression option that automatically checks the data after compression (by decompressing and checking against a hash of the original data), which would reduce the probability of undetected errors to that of a hash collision? i.e. like `7z a` followed by `7z t`, but in one command.