Please use trade offers for Alien demands
Occasionnally, a pop-up will appear where a civilization will tell you. The presence of a starbase such and such in our ZOC is against our interest please remove it. Followed by a yes or no option.
Now this popup does not identify clearly which civilization is demanding this. We don't see the representative of the civilization nor do we see the logo of that civilization.
It would be a lot better if the diplomacy trade menu was used and this was presented as a trade offer. The offending starbase would be what the other civilization demands (and we could not remove it from the list of what is demanded). Basically they would demand initially our starbase for free.
That civilization may have in our zone an offending starbase so we could make it quid pro-quo. The current dialogue menu does not allow for this negociatiating it is an all or nothing.
When I received this demand, my civilization greatly out-gunned that foreign civilization so it would make more sense to me for the demanding civilization to be a bit more diplomatic.
The same thing goes for tributes that are demanded by minor civilization. They should use the trade menu for this and present their demand in a way that what is asked for cannot be removed from the menu from the person making the demand. The text of the demand could be shown in an area of the screen that makes it clear that the civilization is demanding somethig.