andrew what i think happens here is a bundle attempt concept. not all things are to be liked, and as you say, you may wish to follow or track or watch something, but not necessarily 'like' or consider it to be ok. so not all things can fall under the bundle of one construct.

as you say, you dont like meat exporters, but you would like to watch or follow certain threads or aspects of what is going on, for whatever purposes you need.

though if there was an article written where the banning of see more exportation of meat from Australia had been implemented, you may very well 'like' that and also wish to 'follow' the topic.

so i think again you are close in your concept of +Pos or -Neg for some things, which require an opinion, but if you are interested in ongoing results, this would not necessarily fill that requirement, and you may have been better to 'follow' or 'track' the subject or topic?