Are we saying you can’t ever use those terms? No. But if you simply describe yourself as experienced, passionate, creative or strategic without providing further evidence to back those words up, their impact will ring rather hollow.
Another type of buzzword to avoid is industry jargon or acronyms. If you’re modeling your profile after others in your target industry, be careful not to use terms that are only familiar to industry insiders, as these may be confusing to recruiters or even hiring managers. Try to use language that can be understood by everyone on your LinkedIn profile, and save the technical vocabulary for interviews or when you’re speaking to someone who knows your industry intimately.
Acronyms are the same. Out of context, they can be confusing to readers who aren’t familiar with them. Make sure to spell these out and include the letters in parenthesis at the end if you want to.