Experiences from attending tech talks in meetups and conference.

I don't like it if the speakers/talks are misleading.

Lack of communication - The attendees should be informed of what the talk will be about, prerequisites like the level of knowledge required.

I attended a conference and was excited about a talk. But the title was misleading.

A summary of the talks should be shared by the organizers and speakers.

I too agree with @baskarrao, marketing stuff should be avoided in the tech talks

As an attendee, i generally don't like talks which are purely oriented at marketing stuff.