Cross-posting is no longer effective if you simply "copy-paste" content exactly across platforms, as algorithms (like Reels or TikTok) often stifle engagement on videos with watermarks or content that doesn't fit the local format. However, it remains a powerful tool for increasing reach if you employ a "content repurposing" strategy: keeping the core message but changing the visuals (caption, video size, language) to suit the specific characteristics of each community. In other words, cross-posting isn't dead; it's just shifted from quantity to intelligent customization.