Regarding the use of myself/yourself/himself...
I was taught a rule of thumb that you may use the *self pronoun if you've used another version of that pronoun in the same sentence. It ends up limiting the use of actions that pronoun has done to pronounself, or uses the self form as an intensifier.
"He did it himself."
"You yourself know that this is true."
The intensifier usually ends up sounding overly formal, like the writer/speaker is trying too hard to sound important.
How about the misuse of quotation marks? It's similar to apostrophe misuse.
I've seen this sign in a thrift store:
I don't know whether or laugh or cry when I see it.