The local boards indeed contain many valuable discussions and topics that may be exclusive. However, why not visit these foreign local boards to try to learn their languages and understand and read what they write in their native language using one of the tools without attempting to contribute and engage with them in the discussions using automatic translation tools? Because your contributions are at a rate of 90%, it will be incomprehensible to some, as these tools are useless and violate the forum's rules.
If you have your own local board, you can participate in its discussions. You can continue these discussions until the end, answer their questions easily, and express your opinions that everyone there will understand without your posts looking spammy. Regardless of the local boards, English is the main language understood by everyone here, and undoubtedly, in multiple forum sections, you will find these discussions in English, and you can contribute to them.
You can make a lot of valuable posts in your local board, as much as you can also learn to visit other foreign local boards and learn from their discussion. That is a good way to become familiar as well with their own language, or start learning as to how their foreign local boards discussion goes.
However, knowing English language is the universal language, everyone is expected to easily understand even in foreign local boards as long as you are also good in using English language. With that, if you can contribute meaningful insights to their own topics or threads, then the more reason that we should also start posting on other foreign local boards.
