For users familiar with English Wikipedia short descriptions, they may not easily understand the difference.

These are our current plans to address the specific problem of capital letters and punctuation in Wikidata descriptions:

• Adding another step to suggested edits onboarding in the app specifically about this
• A warning when the user starts the sentence with a capital letter – this might not be desired behaviour, sure you want to continue?
• A warning when the user ends the sentence with punctuation – this might not be desired behaviour, sure you want to continue?

We're also looking into long-term solutions for more general issues. One major thing we have yet to solve is re-working detection of bad edits (this is currently based on undoing and reverting of the editors edits, but that proved ineffective). We're also doing some other investigations to see how we can ease the burden of patrolling.

@Charlotte There's been renewed interest in this (see T261977 for details from an iOS report). Can we revisit and pull into a release?

In T255985#6434216, @LGoto wrote:

@Charlotte There's been renewed interest in this (see T261977 for details from an iOS report). Can we revisit and pull into a release?

Tooltip not needed on Android because we will have enhanced submission warnings: T256816