I have been thinking a lot on this...
Realistically we have to look at this from a total business point of view, I cant personally see jagex investing the amount of money required to take down large services, this would require multiple new staff, investment in new systems and ways of tracing the types of people who provide these types of services.
They can't just start banning players for taking these types of services as long term effects on the player base and membership income would simply diminish, realistically I could see them addressing players having certain statistics rolled back to a set time/date.
Now the logistics with the whole discord side and even youtube side, in the grand scheme of things, these are multi billion pound companies, do we think that they will start banning certain servers or taking them down whilst potentially threatening a decent part of the income it earns from nitro users + servers.. i just cant see it i can imagine the conversation just being a no from the outset.
The only probable way that Jagex could make a difference.
1. They roll back individual players statistics who are using these types of services, thus to leading to teamviewer/parsec based skilling.
2. They limit account logons to certain device ids/ip addresses specific in your authentication section on the account management page.
3. They just pretend to make the world of difference to the people who are complaining and realistically nothing can be done, few players/service providers will be "publicly banned".
The biggest threat to most service owners is potentially taking down the discords, but even then it would just move over to another platform if this was persistent.
Time will tell.. i just cant see it working and there will always be a way around it unless its something even more extreme. If anything i could potentially see costs for the end customer being increased for most services.