Rather than asking about "bad DM skills" let's go for the positive spin.
Name one DM skill that your DM has some invested some skill points in (i.e. name one thing your DM does that you appreciate)
If you have more than one DM, you can list one thing for each DM. But stick with just one thing for each DM.
To start:
I appreciate my DM's skill at NPC characterization (voices/personality/motivations/etc)
How about the rest of you?
Name one DM skill that your DM has some invested some skill points in (i.e. name one thing your DM does that you appreciate)
If you have more than one DM, you can list one thing for each DM. But stick with just one thing for each DM.
To start:
I appreciate my DM's skill at NPC characterization (voices/personality/motivations/etc)
How about the rest of you?