Yes, it is common Phenomena. Often, the reason for it is to discourage users from answering bad questions. If a question is low quality, it should be hard to answer (if possible) anyway, which discourages most users. Then some people for further reinforcement will down vote answers, to discourage the behavior.
Not only does answering bad questions harm the site, by adding unnecessary data etc., but it harms the author by taking lots of time they could be using to help the community.

Yes, it is common phenomenon. Often, the reason for it is to discourage users from answering bad questions. If a question is low quality, it should be hard to answer (if possible) anyway, which discourages most users. 

Then, some people for further reinforcement will downvote answers to discourage the behavior. Not only does answering bad questions harm the site, by adding unnecessary data etc., but it harms the author by taking lots of time they could be using to help the community.

Yes, it is common pneumonia. Often, the reason for it is to discourage users from answering bad questions. If a question is low quality, it should be hard to answer (if possible) anyway, which discourages most users. Then some people for further reinforcement will down vote answers, to discourage the behavior.
Not only does answering bad questions harm the site, by adding unnecessary data etc., but it harms the author by taking lots of time they could be using to help the community.

Yes, it is common Phenomena. Often, the reason for it is to discourage users from answering bad questions. If a question is low quality, it should be hard to answer (if possible) anyway, which discourages most users. Then some people for further reinforcement will down vote answers, to discourage the behavior.
Not only does answering bad questions harm the site, by adding unnecessary data etc., but it harms the author by taking lots of time they could be using to help the community.