This. I've never had a negative response when I joined a project and discovered obvious problems when I explained why I think that they are or are going to be a problem and offered to help fix them. Nobody likes the guy that shows up, says "that's all shit, you need to fix it", and vanishes again. But I've never seen anyone hate the guy that shows up, says "I've noticed there's a lot of friction around X. I think we could make it easier to work with and more stable by doing Y".
And I've always liked it personally when somebody does that to me. When somebody with a lot more experience and/or skill helps you, it's like some super high level player carrying you through boss fights: you level up much quicker than if you did it on your own.
And I've always liked it personally when somebody does that to me. When somebody with a lot more experience and/or skill helps you, it's like some super high level player carrying you through boss fights: you level up much quicker than if you did it on your own.