I don't know what the specific 'algorithm' they implemented is, but it's pretty clear it's done nothing but cause issues for many sellers on the platform.
So I will tell you the algorithm:
1. If someone newbie ask questions about your product, he write 2-3 sentences in thread, it will not bump the service to the home page
2. If someone below around 50 posts will write the review, it also not bumping thread to home page
Exception is SEO category, where hundreds of people write daily "Discount please" and it's bumping to home page
Last time they also moved all ebooks, courses from Mics to the proper new category. Nothing against about it. But exposure from home page is zero. Category not even exist in sidebar.
Bumps there are weird, my own bumps moving to home page but not in category list. Some random posts made yesterday are sometimes higher in category than today posts.
I wanted to post course in Mics, thats why I made also the web app supporting the stuff. No, you need to post in ebooks/courses
Mics is spammed with dozens of Trust Pilot review services sticked. There are also a lot of Google Ads accounts rental. If there is some interesting software, you need to dig in this spam. 24h bump not helped.
I was looking for great bumble bot to see how they guy manage his business, but it's burried somewhere in Mics. Seems he mostly sell now on Telegram.
EDIT: INCC if I remember, asked even one mod to try to bump his thread with short one sentence. Not helped! It not appeared on home page
So if someone write for example: "Your service looks great. I am interested, give me details for payment" it will not push to home page. It must be owner post or longer review.