"inspiring comment" is a correct and usable phrase in written English
You can use it when you want to refer to a comment that is motivating to someone in some way. For example: His inspiring comment about overcoming obstacles was the motivation I needed to finish the project.
Let's say I even add an inspiring comment, like "Keep fighting!" or "Amazing turnout!!" or just "#resist".
This year Brexit is the elephant in the field, inspiring comment from everyone from Billy Bragg to Chvrches, but there are worse places to absorb bad news.
The rain cloud that seemed to settle over this city for the duration of the festival — inspiring comment even from locals, for whom drizzle in August hardly qualifies as an unsettling occurrence — seemed to set the psychic scene for many of the plays in the Traverse's Fringe season.
I totally agree with her inspiring comment.
We want to thank the reviewers for this inspiring comment.
When, in the final, he appeared on screen himself, he caused a Twitter flurry, inspiring comments such as "Nadiya's husband is a stone cold hotty".
In the last four years, Mr. Holding has added four lifts and built three log-and-rock lodges that display his passion for quality workmanship, inspiring comments about Snowbasin's restrooms, with their brass fixtures and marble counters.
The documentary sparked a lot of debate in Perugia, inspiring comments like "for the umpteenth time, Perugia is on trial, slandered, defamed without a chance of redemption", or something to that dramatic Italian effect.
'Older men are very inspiring,' comments Camilla Arfwedson.
I want to thank Tony Atkinson, Georg Fisher, Juan Jimeno, Olivier Blanchard, Prakash Loungani, and the anonymous reviewer of this journal, for their inspiring comments, questions and suggestions.
And yet, in death as in life, Coward exerts a persistent fascination, inspiring recollections, comment and conjecture, like a captivating guest whom people can't stop talking about after he leaves the party.
