Bots: hard to say. I have seen bots welcoming people posting to introductions hashtag. Mainly with help. Having seen bots that just say "hello" but could be. Check the replies history of that profile. Update status: Nip38 but I've only see amethyst using it.

NIP38 - NIP-38 - User Statuses

Read more about the NIP38 on {{appUrl}} - NIP-38 - User Statuses

Laser eyes: it was a meme from 2(?) years ago. Was supposed to be until bitcoin hits 100k. Now I feel is a sign for "bitcoin maximalists" Long form notes: nip23. Is often combined with markdown for fancy formatting. Videos: it doesn't cost money to upload videos to the usual nostr media servers... But hosting vídeos is an expensive business and it's complicated to serve videos efficiently. Your videos could be deleted any time by the hosting service (when they run out of space), you should create efficient (compact) videos for best viewing experience on nostr, it's hard to beat YouTube in terms of best viewing experience for your audience