and then forget about submitting reply (due to being occupied by other things at a time) and come back to it. What are the campaign managers' thoughts about this and the community as well?
There is a possibility that the OP will not reply to messages from people who respond to certain topics.
1. The response is not what he wants off-topic, it's sometimes someone who is lazy to answer.
If someone asks about Bitcoin someone else answers about coins and so on.
There are also those who make a topic about information, other people answer what that information.This is not fair to the people responding to a topic, IMO. People who reply to topics should know that if they are on-topic and they follow the rules, they will not be censored. Also, it is very annoying for reply-writers when they write long, detailed responses and then the topics become off-topic and useless.
Maintaining perfect on-topicness is difficult. In the future, discussions may be made threaded instead of flat, which will basically be like having a system that automatically creates new topics when people are posting off-topic things (in many cases).
Nothing can be said by the campaign manager, if someone found spamer is excluded, fired from a particular campaign.