"I am becoming increasingly tired of lack of clarity in invitations."
My friend got married last year in a very small ceremony with just their immediate families. They waited until this year to have a reception (which I am not particularly a fan of), on the 4th of July. They chose a place that used to hold my high school's prom, so I assumed it was somewhat formal. It turned out that it was a very relaxed, casual picnic, where most people were dressed in their red, white and blue, in a pavilion that was also on the property. No mention of it whatsoever on the invitation.
I would rather end up overdressed, like my DH and I were, than under, but it bothered me. It could have easily been mentioned in the invite or on the RSVP website. There were people present that were very formally dressed and I could see their embarrassment. I had other people tell me they called the couple to clarify, but I didn't want to bother the couple while planning and preparing. Had it been mentioned somewhere, they would not have received dozens of calls and so much confusion that day.
On another note, I am tired of receiving supposed invitations to events through word of mouth, like my MIL says "cousin is having a birthday party on Saturday and you are invited." Apparently it's normal in his family, but if they can't bother to call me themselves, they must not care if we are there or not. Also, I am a huge fan of actual mailed invitations (with details!. A text is not a proper way to invite someone to a first birthday party.