Personally I can't get that upset about odd words used at the start, middle or end of a sentence...I probably use a few myself at times.
Meh ???.. not a word I ever used outside the internet, but it indicates a ' shrug of the shoulders' mentality quite well.
'So'....my attitude would be..meh.
'Yeah' on the end...I knew someone who did it a lot, he was very overbearing, so it simply made me determined never to use it, ever.
I use bud a lot toward friends, collegues or someone who appears friendly and receptive...ive never had a bad reaction, yet I know it riles some on here.
What the heck, we're all different, all have our idiosyncracies, if we didnt, we'd become THE BORG