We typically use LanguageTool to describe fashion, textiles and shoes in an E-Commerce context. A couple of additional user-dictionary features would help us a lot:
The ability to flag overused words, superlatives and empty phrases. We have to describe many similar items – the defaults are not rigid enough for our particular use-case. The Ideal was feeding a Website-Root URL into Languagetool and it would suggest rules, based on the average usage-frequency throughout the Domain – but I guess this is outside the scope of LT?
An option to define alternative technical terms. LT does suggest the more industry-specific Elasthan instead of Elastan, which is great. It was even better, if one could define group-specific rules, to match the required tonality, which go beyond this case.
One German language example would be using the layman word Gemisch in the sense of blended fabrics. It would help us a lot, to propose alternatives ourselves – and to also write the Nag-Message which proposes the superior term:
Geht es um die Materialzusammensetzung von Textilien? Wie wär’s mit Mischgewebe?