1. I am Ok with NOT being welcomed, but it's nice when I am. When I DJ I always try to welcome everybody as soon as they are in chat range. I also run a chim, so I send everybody a chim invite as soon as I can, unless they are obviously a couple.
2. I hate gestures worse than almost anything. I have a few that I made myself that are very low-key, short and offbeat, but I used them maybe 3 times a year. The dreaded HOOOOOOOOOOOOOOOOOOOOOOOO! gesture and incessant repeated annoying stock phrases about how the DJ ROCKS! will get you muted.
3. All Caps: HATE IT
4. WOW words....see 2.
5. Tips Shouts: Have no impact on me whatsoever. As a DJ, I generally tip other DJ's out of professional courtesy (though the amount may vary.) If I don't like them at all, I won't tip, but nothing a host or anybody else says will change my mind one way or the other. When I DJ I NEVER ask for tips. I consider it crass.
6. Notices - I admit I usualy don't read them, except from DJs I know. I also try to make mine clever and fun, and give as much information as possible. I think mine are worth reading, and sometimes a clever one will catch my eye, and I appreciate it when that happens.