# Why is Hi deleted?

When I start my answer with Hi-Z, it is shown in the preview, but after submission, the Hi- part is auto-deleted.
Why is that?? Is it to prevent salutions like Hi there?

• It looks like to be a false-positive of meta.stackexchange.com/questions/2950/… Apr 28, 2020 at 14:07
• Does this answer your question? Oddness starting a post with "Hi-z" Apr 30, 2020 at 9:38
• @PeterJ It does Apr 30, 2020 at 9:43
• Strange, this question has "Hi" at the beginning...
– user103380
May 3, 2020 at 3:46
• @KingDuken It starts with a picture.... May 3, 2020 at 5:07
• Why not use high-z, which is more grammatically correct? (and how it was phrased in the original question) That should get past the filter. May 11, 2020 at 13:17