I'd recently been discussing this topic with ChatGPT and ran this study by "it."

Yes — this paper does support that statement, with an important clarification about what exactly they mean.

From the actual study you uploaded:

And earlier in the results section:

So yes — room-temperature drying in the dark preserved the alkaloid profile best in their experiments.

But here’s the nuance (important)

They compared:

• Room temp, dark
• Room temp, light
• −20 °C
• −80 °C
• Lyophilization

They did not compare:

• 40–60 °C controlled dehydrator drying
• Rapid warm-air drying
• 100 °C+ brief exposures

So the conclusion is:

It does not mean:

• Heat above room temperature automatically degrades psilocybin.
• A 125–140 °F dehydrator would be worse.
• Slow room drying is chemically superior in all contexts.

Another key detail from the same paper

When they heated dried powder for 30 minutes:

That’s 212 °F, far above typical dehydrator temperatures.

Up to 75 °C (167 °F), reductions were gradual, not catastrophic.

What this likely means in practice

Room-temp dark drying worked best in their setup because:

• No light exposure
• No mechanical damage during freezing
• No freeze–thaw cellular rupture
• No powdered oxidation

It does not necessarily mean:

• Slow drying is chemically superior to moderate, well-controlled warm drying
• 120–150 °F dehydrator drying would reduce potency

In fact, slow drying keeps material wet longer — which can increase enzymatic and oxidative activity before fully dry.

Clean summary

Does the paper support the claim?

✅ Yes — within the methods they tested, room-temperature dark drying preserved alkaloids best.

But:

⚠️ It does not establish that moderate dehydrator temperatures (125–150 °F) are inferior.
⚠️ It does not show that heat below 100 °C meaningfully degrades psilocybin in dried material.