@GeorgeCooke ,
Whilst I can acknowledge there are times when the correct terminology is an absolute must (such as the difference between r1 and R1 for example), the vast majority of the time, it doesn't matter that the terminology is not 100% correct.
If you say transformer to a client they know it's a device that converts the mains into something else. They don't need to know that in fact it's an electronic switch mode power supply unit. Say that to them and they'll look at you as though you're from outer space.
Likewise... plug and plug top (meaning the thing on the wall and the thing you shove in it), bulb (meaning the thing in a lamp that makes the light), fuse (meaning the circuit breaker in the fuse box (meaning the consumer unit) that they have to switch back on if it trips). Just a few examples.
As a consequence of having to use client speak, it is inevitable that we will use these terms here and guess what... the world is still turning.
If the only thing you can offer to a thread is to critique someone's use of language when the vast majority of people here know what the others are saying, then I'd suggest you simply skip the thread and ignore it. As I said above, there are times when it is critical the correct terms are used, but for everyday objects such as light bulbs, plugs etc. it's not the end of the world especially when the vast majority of people will understand what is being said.
Whilst this constant nit picking gives some of us comedy material from time to time, it is getting to be somewhat tiresome and can result in the thread being de-railed somewhat. So, as I've said, if you have nothing more constructive to add to a thread other than a critique of the terminology being used, move along to a different thread where you can contribute in a more constructive manner.