I would disagree. Minimum requirements are just that, the minimum of what is expected of you. And, if you do less, then that’s a problem. You should be talked to or kicked. If you do more, than you should be praised and possibly “Rank up” in the guild.
There should be nothing wrong with that. Yes, they aren’t over-achieving, but they aren’t under achieving either. They know exactly where the line is, where the standard is that they need to set and that should be okay. Especially, because not everyone can over-achieve, due to things, such as: work, family, school, etc. This is a game after all and I don’t think anyone should be shamed, or worse, kicked from a guild, because they “only” did what was required of them.
That is your choice, but I feel that if you do that, then you shouldn’t complain when people don’t do “enough”. If you don’t give someone an expectation, a standard of what you feel is what they should or need to do, to be a part of your guild, then you shouldn’t complain that they’re not doing enough.
As I said in a previous comment, if you feel you need every player to donate 500K, then you should directly tell them. That way they know what is expected of them. In that situation, if they donate less, then obviously, thats an issue. If they donate more, then that’s awesome. Both people should then be dealt with, accordingly. You can’t expect them to be mind readers.
Thats fine, then you should say your requirements are flexible, not that there are none. For example, if you want everyone to do 100 trophies on GW weeks, because there aren’t Raids or Invasions taking up so much time, then say so. Alternatively, if you know that Raids and Invasion take up too much time that week, then say “On non-GW weeks, we only expect 50 trophies.”
In those situation, everything is clearly defined and there is no confusion. People know what’s expected of them. And, as I said before, if they don’t meet what is asked, action would, understandably, be taken. And, if they do more, then action should be taken for that as well.