Rockstar defended the decision, saying OpenIV enabled "malicious mods" in GTA Online.
"Myself, and other members of the LSPDFR and GTA modding community ask that OpenIV be allowed to continue distributing and running as a modding software, and that the modding of the Grand Theft Auto series, including SA, IV, and V be deemed legal again as Rockstar Games has said in the past".
As can be expected, Take-Two's move has angered numerous game's fanbase with some even swearing to never buy a game from the publisher ever again.
They also claim they are working on this issue so that they can "support the creative community" without hurting other players. Nearly immediately, players began complaining that the game's online infrastructure, which uses a simple P2P mesh rather than centralized servers, makes it very hard to cut off hacking tools on a technical level. Of course, there's no telling if reaching its goal will have any actual impact on Take-Two.
Will there actually be fewer cheaters in GTA Online now?
As Take-Two explains that GTA Online was at risk because of the modding tool, however, this does not make any sense since the mod tool was designed specifically for GTA V's single-player mode.
Maybe? Most GTA Online cheaters probably use pre-built exploits instead of creating their own, so it won't really affect them.