Rikafip, here are a few more candidates to add to your list:

[ANN] LOUVRE FINANCE - https://bitcointalk.org/index.php?topic=5344225.0 (a self-moderated topic)
[BTCMT] Minto - https://bitcointalk.org/index.php?topic=5343302.0 (a self-moderated topic)
[ANN] CosmicSwap - https://bitcointalk.org/index.php?topic=5341623.0 (a self-moderated topic)
[ANN] Synthesis Bank - https://bitcointalk.org/index.php?topic=5344544.0 (a self-moderated topic)
[ANN] ARTEX - https://bitcointalk.org/index.php?topic=5341142.0
[ANN] Direwolf - https://bitcointalk.org/index.php?topic=5340781.0
[ANN] RocketBit - https://bitcointalk.org/index.php?topic=5341697.0 (a self-moderated topic)
[ANN] Low Orbit Crypto Cannon - https://bitcointalk.org/index.php?topic=5336734.0
[CHIPS] PROFIT - https://bitcointalk.org/index.php?topic=5331681.0 (a self-moderated topic)
[ANN] EDUFEX - https://bitcointalk.org/index.php?topic=5336991.0
[ANN] VIDIACHANGE (LA VIDA) - https://bitcointalk.org/index.php?topic=5335467.0 (a self-moderated topic)
[ANN] Labra - Deflationary DeFi - https://bitcointalk.org/index.php?topic=5334805.0 (a self-moderated topic)
[ANN] $NEWINU - https://bitcointalk.org/index.php?topic=5341681.0 (a self-moderated topic)
[ANN] Gaugecash - https://bitcointalk.org/index.php?topic=5344829.0 (a self-moderated topic)
[ANN] Gaia - https://bitcointalk.org/index.php?topic=5340737.0 (a self-moderated topic)
[ANN] Ugly Inu - https://bitcointalk.org/index.php?topic=5341894.0
[ANN] ShinChan - https://bitcointalk.org/index.php?topic=5341249.0
[ANN] CBK Token - https://bitcointalk.org/index.php?topic=5340979.0 (a self-moderated topic)
[ANN] SafePepe - https://bitcointalk.org/index.php?topic=5336781.0 (a self-moderated topic)
[ANN] Travel-Set - https://bitcointalk.org/index.php?topic=5343760.0
Credefi - https://bitcointalk.org/index.php?topic=5330290.0

Thread - [ANN]ClikPad: World’s first Multi Chain Powered AI Launchpad for IDO,IFO & NFT

Another ANN thread that high likely use bumping service considering it a self-moderated topic and there a lot of newbies (most of them got banned already) trying to bump it

ANN thread: [ANN]The Standard Protocol is a decentralized finance (DeFi)

Several new announcement threads  been added to the list ( and spam reported) of those that are using bumping services. Based on their M.O, it seems like they hired notorious Vitor Services which is by now a household name here on bitcointalk. Whack-a-mole game goes on..

[ANN] OUDToken - Real Green Cryptocurrency | PRE-ICO TOMORROW 🚀
[Ann] MELD- the first DeFi, non-custodial, banking protocol
[Ann] K-Base presents The Great Vault Dalí Challenge!
[ANN] IMM Global - Insurance of Market Maker

@Rikafip, there are a lot of newbies posting and bumping this thread, so it's likely that it has been using the bumping service:

ANN thread: [Ann]Game X Change-the future of game asset exchange!

Yeah, obvious case of thread bumping as some of the accounts used are doing the same thing in four other announcement threads:

[Ann]ZERONAUTS- a platform for the assessment of the stability of cryptocurrenc
[ANN] Nafty - The big token for the adult industry!
[Ann]KMT is the largest Complete Decentralized Token!
[Ann] The First Quantum Based BlockChain - Quattro Tech!

Yep, another one that hired bumping. Same accounts that are active in that thread are doing the same in bunch of others as well. These are just a few examples:
[Ann] Passive income with MOONFLIGHT!
[Ann] The first blockchain marketplace for physical goods!
Ann]A decentralized crowdfunding portal for startups, entrepreneurs, businesses

Hey Rikafip, I've found a few more threads to add to your list that use bumping services:

[Ann] Studyum is a next-generation learning platform!
Buyzooka - checkout at lightning speed

All newbie accounts that have been dormant since they were created, mostly around January 23, 2018.

Another bumping service. [...]

[ANN] 🐶🐶🐶 DeFido 🐶🐶🐶 Meme Coin
[ANN] 💿💿💿 Inery Blockchain 💿💿💿 Data Storage    
[ANN] Verlux - First Decentralized Cross-Chain NFT Marketplace    
[ANN] 📈📈📈 Agile Finance 📈📈📈 Lending & Decentralized Swap Finance    
[ANN] ⚡⚡⚡ AutoBitco ⚡⚡⚡ The safest P2P trading platform    
[ANN] ⚡⚡⚡ CSPro Chain ⚡⚡⚡ Feel empowered!
[ANN] RavenDex - First lending and decentralized exchange powered by cardano.
[ANN] 🌍🌍🌍 Pacific DeFi 🌍🌍🌍 An ecosystem which will unify DeFi landscape
[ANN] 💿💿💿 EDAIN 💿💿💿 AI-powered knowledge creation ecosystem

What's interesting about this DragonBite project that is being promoted in that post is that it has ANN here on bitcointalk, and you can see several other members of that bumping group writing there.
⚡️⚡️⚡️DragonBite ⚡️⚡️⚡️ Platform for loyalty market