I agree with the post made by LJ Russell. But I will also put my spin on this.
I've worked in the Open Source software world for many years. WikiTree is very much like one of these projects, but also with differences.
Open source projects are always in a state of flux. There is never any kind of "perfect" end state. There will always be profiles on WikiTree that do not yet meet quality standards. Even from those people who are long-standing members here. I think it's ridiculous to impose too great of a quality standard to even begin using the site, because of what LJ Russell said that everyone has different skill levels on here. If we were to impose a certain quality standard to even create a profile on here, then it will drive users away. That mentality (of requiring more and more quality to even begin) rewards people who are more of "perfectionists". The level of quality, or "imperfection", grates on those people who perceive it to be a nuisance.
This is why we have a collaborative community. Anyone can go fix problems on nearly every profile (depending on Privacy level, of course). That's a lot of power, and a lot of freedom too. This situation reminds me of guidelines of what you're supposed to do when hiking in a forest. Ideally, you pack out your trash as you make it. But there will always be people, for whatever reason, who leave trash in the forest. So, if you see something in the forest that shouldn't be there, pick it up and take it out with you. In other words, you leave the place better than when you found it. Now, does that require time and energy? Absolutely, it does. Could someone be frustrated that someone else left trash in the forest? Sure, someone could. But that "being frustrated" part is a choice.
You could be frustrated that other people on WikiTree do not meet some quality standard. It could get under your skin and grate on you. You could get mad that other people just don't seem to understand the situation, or that they are willfully ignorant, or don't want to "play by the rules". But you can also choose a different emotion to feel, and choose a different set of behaviors.
I prefer to choose to "pack out the trash", using the hiking-in-the-forest metaphor. Everywhere I go, if I see something that could use an improvement, I do something. Even if it is a little something. I don't have to go out of my way to correct all the problems that someone has on a profile. But I can choose to correct a little something here or there. Because every correction, or fix, or improvement, will then improve the overall tree. I will correct a location field. Maybe reformat the Biography or Sources. Maybe cleanup a little bit of the GEDCOM garbage. Occasionally, I spot the odd merge that really should happen and I submit a merge request. I do all of this as I'm working on my stuff and I just happen to run across other people's profiles.
I implore everyone to give this some thought. WikiTree will NEVER be perfect. It is in a constant state of flux and always will be. Is it moving in the direction of becoming better in terms of quality? Yes, absolutely! We have some amazing projects and people that help to improve quality, and to even measure the quality. Then, if we are moving in that direction already, then what is the problem? We can simultaneously work on quality AND quantity. The two are not mutually exclusive.
If we worry less about other people's "quality" and focus more on: improving what we find, helping new people improve their skills, and use metrics of quality as a feedback mechanism for the community, then I think everyone will find that the situation is not as dire as one might think.
Let go of the emotional attachment that others aren't meeting up to some standard. Otherwise, you might find yourself constantly disappointed or frustrated with humanity.
I have seen amazing transformation of WikiTree over the 6 years that I have been here, all without having to "change the rules". It keeps getting better and better. We don't need to change the rules. Just keep bringing in more like-minded people, and do the work.