

If by “a little toxicity” you mean a little bit of aggressiveness, sarcasm, etc., I agree with you. It depends a lot on the community though - in some, allowing it will be counter-productive.
If however you mean harassment and hate speech, as the author of the text, I strongly disagree. If the mod doesn’t curb down those things, they might not be “lording” over the discourse, but other users are - because
- users shut each other up through harassment
- hate speech silences whole groups, as they leave the community
Another detail is that you don’t need to control the discourse to curb down harassment, since it’s only behavioural and not discursive in nature.
So IMO when it comes to those two things the problem is not overzealous mods, but dumb ones not doing due diligence, who are a bit too eager to falsely accuse their own users to be voicing hate speech or harassing each other when it is not the case.
[Sorry for the wall of text.]
Okay, here’s a silly explanation.
Imagine two people want to communicate. They shall be named Alice and Bob. It’s night, and they’re too far away to hear each other; but each has an electric torch, and they can see the light coming off the other person’s torch.
Those torches are fancy. They have two settings: “strong” (big arse blinding light) and “weak” (wee light, but still visible). Let’s call a strong flash “1” and a weak flash “0” for short.
They also have a code, that they use to interpret the flashes of light that they send each other. Here it is; check the “binary” column. For example, if Alice sent Bob a weak flash, then a strong flash, then weak, strong, weak, weak, strong, strong, then Bob is supposed to interpret this as an “S”.
This is already enough to communicate. Like this:
Remember, each “0” is a weak flash and each “1” is a strong flash. When we decode it with the table from the link, here’s what you get:
Now. Messing around with the settings of a torchlight is slow, painful, and annoying. So is to watch closely for light flashes, write them down, and decode them with a table. So… let’s use machines to do so?
Okay, now let’s replace the torch. We want something that emits light that you can see from as far as reasonably possible; like, from Mars if you want. We could instead use light that has been amplified by radiation, it’s really strong and directed. The common name for that is “laser”.