In general, you may find that many people consider issues of grammar and correct wording to be ‘picking nits’. Particularly since the first language of many of our Open Source programmers is not English - British, American, Australian or other dialect! So long as the Output is OK, most programmers would rather spend time on what they consider ‘Real’ problems. They don’t even notice such subtleties.
For most programmers, the dopamine reward comes from adding new functionalities or in solving complex logic problems. The details of interface, documentation, and error handling tend to be aggravations. (In one program that I wrote personally, the basic functionality of the program was complete in about a week with about 3,000 lines of code. The idiot-proofing & documentation made the program 10 times larger and took more than 6 months. Instead of a half-day of training on a 1-page of set of complex instructions for 4 people refreshed once a year during a 5 year project, I spent 6 months coding dozens of iterations of the program with the specification changing due to a weekly hour-long meeting with 7 people!)
As much as we need programmers who address New Features & Bugs, we could benefit from the detail-oriented people becoming direct contributors too. (This includes those who see language issues and the little GUI idiosyncrasies.) If they can submit corrections for the Gramps code directly, these fine-tunings of the interface & output could be completed by people who find such work gratifying.
Maybe this would appeal to you? (In addition to the much-appreciated Dutch translation work!)
Personally, I contribute by trying to research & find answers for the support maillist or Discourse. I also work on the Wiki. (Revising the Wiki tends to inspire me to file far too many bug reports & detailed feature requests.) It is my way of learning the program – I found the Wiki conflicted with my learning style.
My contributions are still limited because I have a VERY uneven understanding of the features of Gramps. I don’t contribute to coding because I found Python & GitHub unappealing. (I expect my aversion to Python will weaken and I’ll start coding a few items that I need but others do NOT… Plus I won’t have to follow coding standards for stuff that isn’t distributed! )