Score

Scores are features of most entities

A Score is included in the campaign (or comment) feature, but it could also be a distinct feature.

It's basically just some range of integer numbers where a small number indicates dislike and a large number indicates liking something. They could be applied to types of countries for instance.

Alternate schemes proposed

A Fixed, Simle range

One idea is to use a seven step system for scores as follows:

-3 Boycott
-2 Strong Avoid
-1 Avoid
0 Neutral
1 Support
2 Strong Support
3 Endorse

Variable, relative range

Variations are

A range from -1 to 1, using real values as score
A range from -100 to 100 using integers as score
Other shceme

A fixed range could be converted to a relative range by dividing the score with abs(max) or abs(minimum) and multiplying it by the the maximum value of the fixed range