The only time I use the Neutrino Detector is when I'm hunting for slipstreams in hyperspace, and only then if I'm not carrying enough material to build a sensor array and scan for one.
I've tried to make it work well for me, but it's faster to just do search patterns and pop active scans. Like intrinsic, I've rarely discovered things I otherwise wouldn't have, It can technically work "reliably" if you divine the fake signals and use it in tandem with active scans while conducting search patterns, but at that point why even bother? It's just a slightly longer range sensor sweep by then.
If it functioned more like an active directional sonar or radar, providing static returns, at regular intervals, and at longer ranges - while gradually 'burning away' false signals - I think it'd be more satisfying to use. There would still be some skill to it (i.e. painting a correct direction while moving your fleet), and might even be fun, in its own way. By being directional, you wouldn't be able to burn away all the false signals in one swoop, keeping up a bit of mystery.
Seems a lot more interesting than cluttering the sensor with unavoidable false signals or just blatantly ignoring the false reading mechanic altogether. More of an 'emitter' or 'sensor' than a 'detector' though, I guess. Semantics.