In plainer lanugage, dress the way you want, and talk as much as you want about what is really appropriate Highland Dress, but stop making demeaning remarks about people who do not even pretend to wear the kilt in the Highland manner. Insulting remarks do not add to the discussion of Highland dress in a positive manner. Extend the same level of politeness and common courtesy to others as you would expect to be extended to those who seek some level of "accuracy" of Highland dress.

Remember, your opinion about the proper way to wear a kilt is only binding on the way the YOU wear a kilt. If you don't like the way another person wears or accessorizes a kilt, don't copy the example, and suffer in silence.
Of course, the very same statement could also be applied to those who frequently brand all traditionalist kilt-wearers as "kilt police", "kilt nazis", and so forth. What's good for the goose is good for the gander.

T.