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> I stand by my initial complaint: any speech that obscures the actual topic behind lingo available only to a small group of people should stay in that small group or improve.

These days, with the internet at everyone's fingertips, I find it very hard to understand the "I couldn't find what it means" explanation when a simple search for ILS returns some pretty clear explanations on Wikipedia or Quora on the very first results page. No need to even click a link. And if you do click you get pictures, explanations, everything you could want including how they can be hit [0]:

>> A localiser antenna. Point of interest: In case of an aircraft over-running the runway, it is the localiser antenna which gets smashed!

And keep in mind that FlightRadar24 is not a site for the laymen. It's for people with an explicit interest in aviation and there's a definite assumption that you understand these concepts. Perhaps other sources were clearer. Just like it's assumed you know what ADS-B, kts, or FL(350/360) are. They aim for a different audience.

[0] https://www.quora.com/How-does-the-ILS-Instrument-Landing-Sy...