Hi @Baltus it is fun how we all like to write but not so much to read 
& I have to say thank you for raising the original post that started all this discussion

First I would like to say there are two parts to the announcement question
- The What
- The When
I find conflating options/ scenarios to just lead to confusion & nobody really understanding or looking at the issues in their simplest form
My previous suggestion soley refers to "The What", this being what will be announced & what the structure or triggers are for controlling the announcement
& @Baltus I think we are saying the same thing regards the control, I think my suggestion does exactly the same as what you are saying, it just does not require any check box
as for "The When" I was trying to avoid this topic as it has been rehashed many times on here & any change regarding this always seems to be pushed down, I was hoping maybe to get the control / trigger side of things changed first then maybe with some luck "The When" but as everyone wants to join the issues.....
Again @Baltus I agree with you 100%, the whole 750m shape point, 2km Via points is daft & have said as much here
Having the announced point name / notes occur at the location the point is placed gives the user the most control.
If the What was announced & the When was made & controlled as per my 2 suggestions I think there is enough flexibility in that setup that everyone could have what they want to hear, when they want to hear it