I own and use SnapCaps in several firearms. I won't intentionally dry fire a hammer fired firearm ever. Even with striker fired designs, I don't excessively dry fire. For disassembly and function testing, no issue.

Some people sit and dry-fire their pistol hundreds of times over several hours to "break it in". I've never practiced this. I'd much rather take it to the range and actually fire it with live rounds to "break it in". Still, plenty will say there weapons never suffer from dry firing. More power to you.