Because that is what the Yogis recommend when addressing people. English has appropriated culture with these words and the least we can do is use them properly to show our reverence to the culture from which they have derived.
Namaskar - literally makes that you become reverent, so that you can do the act of salutation reverentially.
Well it sounds good. In addition it's very close to origin of the word.
It is the word taught to me by my Acarya for the reasons stated above and has more power within the send
Coming from the perspective of western ways as a male it sounds to me that the heavy pronunciation implies that of a masculine response. Whereas Namaste seems to draw the tone of a soft voice representative of femininity. Either way understanding through the text denotes that Namaskar is the proper form for which should be used in a greeting.
Namaste has been adopted by western yoga practitioners, usually being the only Hindi word they know. As with most things, western adoption has somehow cheapened the word. So I prefer namaskar.
The definition is pure
