Comment by v0tary

Thank you for pointing this out - after reading the OPS article, it is the first thought to mind. Maybe I missed it, but the premise of the article is contextualized on the response rather than the originating presentation of the problem. If the person isn't asking for your help, it can come off as offensive when hearing remarks/responses like this; and as many point out in the comments - there is no easy way to say it. This just leads to that person internalizing in the future and less likely to seek actual help. This isn't an insecurity, NO ONE wants their work invalidated. (and so many wonder why workplace burnouts are common)

While the proverbial "There is no I in team" applies here, the real lack of social skills is on the OP, not the person presenting the problem.

Re-phrasing aside, a simple, "Hey, that's an interesting problem. I may be able help if you'd like" before stating the obvious solution will go miles in the conversation and re-enforce the relationship between both parties.