I don't play with transparent diplomacy, so I don't know if the number are correct (seems like a bug), but it may be explained by the fact the "The more a civ hate you, the more it doesn't like when you make warmonger actions". So a friend will usually tolerate your warmonger behavior, while an ennemy will enter in a "loop" of "I hate you so I hate your even more".
I find Ethiopia quite easy to play, actually. Your unique building is the first building you usually want to build, giving you a step into founding without renouncing to early culture. A goal for Ethipia, I think, is reforming her religion, for another extra tech. Mehal Sefari is a defensive unit, so you want your early settling be as large as possible, plan on spreading your religion, and then ripe the benefits. Avoid having many coastal cities, try to keep all your coastal cities grouped in the same sea.
True that there is a "hate-loop", but almost entire game I noticed values like -34 or -60. One civ was approaching -100, I think. All these are quite ok. Then suddenly late game -1450? I'm rather interested if the value is not some kind of bug or is it really intended to be so huge (but for what reason then?)
You're playing Authority, I assume. Authority generally does worse at science, at least at first. As long as you're pumping out cities and military units, there isn't necessarily any way around that.
The AI bonuses thread has AIWorldConstructPercent, so yes.
Hell if I know... I have DoF with 2 Civs and 1 Vassal, but the other 4 hate me. They DoW me all the time, like in turns. Sometimes they sync and I have 4 wars... And I have only ever started war in like turn 50. EVER. All other wars - I am DoWed. Poland, which is closest, hates me as much as that -1450 modifier. Crazy...
I noticed in my last game that simetimes those bonuses glitch out, i.e. they show 0 despite obvious fact they are a match. When I removed all works and put them back in - they were ok then.
