Nobody wants to use BS words like "upskill" and "learnings" except the corporate drones who are preaching them.
If you have respect for your readers, then you use language they can relate to.
If you have respect for your readers, then you use language they can relate to.
Regardless: I suggest you check the sibling thread (https://news.ycombinator.com/item?id=33805016), where we explore more relevant considerations - not just "what group are you masquerading as?", but also "does the use of this jargon result in fuzzy thinking or poor structure independent of the actual words used?" (/u/munificent suggests yes, I suggest that they're often correlated but there's not necessarily a causal link - cutting out those phrases will not _in itself_ result in better-considered, clearer, more-meaningful communication)