1. They don't overtly say they are RMT, they don't say they are giving content carries/boosts for irl money/cash.

2. SE task force probably aren't equipped with tracking such things, it should be as simply as seeing 'this account cleared ultimate in under 20 pulls, this seems pretty sketchy, let's investigate' but I assume they don't have the actual systems to detect this suprise to suprise.

3. SE don't care, boosters or boosted account have never gotten banned, I genuinely haven't ever seen or known of a case in 3 years.

4. you can't track IPs reliably. VPNs or non-static ips aren't really bannable. It's naive to think boosters don't mask their ip.

It's sad really because WoW recently banned an entire guild of week first mythic players for boosting others and they slapped them all with 18 months - 2 year bans and the community loved them for it. We deal with the polar opposite.