Before going into it. Just an example of one of them.
Made a few posts in the past about this as have others.
These services have been used by gamers for the past 2 years in Maplestory. They were only blocked this year on May the 22nd which was when major DDOS attacks were happening and Maple had lots of downtime. When they resolved the issues nobody was able to connect using these services anymore. Most likely blocked along with everything else.
Since then, I and others have not only made an effort to contact these services about the issue connecting to Global Maplestory, but we have also contacted Nexon about it through support. Both services told me that they could no longer connect either even after running multiple tests and trying different things.
I've gotten mixed responses from Nexon. I don't think the first one understood what I was asking as he just said he'd pass it on to the developers. I tried again a couple months later and was met with a different response.
As you can see them seem to think it's just like any other private network. VPNs are obviously against the TOS and while W[tfast and Battleping are both private networks they alone should not be blocked as they are used by thousands of gamers who suffer from high latency. Battleping even uses the users IP address to login before connecting through the US server which Nexon would be able to see I'd assume.
He also states the game should be playable without these services providing you have a broadband connection which is really not true. The delays are clear as day and not everyone lives near the servers in the US. Without these services the overall gameplay experience is not smooth. There are noticeable delays in attacks and buffing. Also trying to pull off a double flash jump close to instantly is impossible without these services.
You do not need to have control over these 3rd party services. You simply need to unblock them.
I found this also.
As you can see this is fairly recent. I don't know if they are still trying to get it working with the development team but a word on this would be nice.
Ultimately these services are a NEED, not a want for MMO gaming and online gaming in general. They support 80+ MMO games and if you go to any one of their forums and ask if the use of these services such as Battleping is allowed they will all tell you that it is. There is no reason why these should be blocked. Not everyone who is in GMS service area is on 20-50ms ping. Some of us have 200+ms ping especially from Australia.
Please do something about it. Maybe get into contact with them and see if you can restrict access to these services only.