Plain Language Association Internation (PLAIN) is an international association that promotes clear communication in any language. Some goals of PLAIN are:
Increase public awarance of plain language within government, business, industry, and other professions.
Help people understand and use plain language principles.
Promote research and development in plain language.
Poe, or more accurately the speaker, is posing that the bird is clumsy.
The introduction of the ghost adds mystery to the story, which naturally attracts the audience as it makes people want to find out more. Moreover, even though the ghost does not speak, his clothes reveal that he is King Hamlet. This suggests to the audience that the King has some kind of unfinished business, or that there is something important that he wants to communicate. This forces the audience to wonder what the business might be and what this means to the future of the kingdom.
The cost is an expensive habit? not really sure but people who smoke spend a lot of money if they have been smoking for a long time.
It shows how humans have threatened the life of reptiles while they have lived, by also giving an example of turtles being stuck in the nets. That makes the passage more dramatic and gives the reader an effect of shame, and has left an impact/influence.