How to change in the latest list the user who make the topic

[hhlp]

Thx you this is what I really want

Change Default Avatar in home page (for original author avatar)

I would like to dredge this back up. For our particular needs I would much prefer to show the original post author on latest rather than the last reply author. Is it even possible or is this so embedded in core that it couldn’t be done with a plugin?

Made by you… @Johani

Regards.,