Telegram is a very popular messaging application. There are numerous problems with it however. Telegram doesn't have encryption enabled by default, it is only enabled in secret chats. Even if you enable a secret chat in Telegram, Telegram rolls its own crypto, it uses its own protocol instead of something more established like the Signal Protocol or something based off of the Signal Protocol.
I also see people linking their Telegram on dark-net posts and operations asking people to contact them. This is very bad, telegram is not anonymous and should never be used for that purpose.

my income and traffic comes from telegram too and I also have my own autoshop on telegram so I don't have any more options.
For that same reason I have telegram installed in a single vm and that single vm will only be used for telegram.
/u/acronym
Telegram can be torified with no problem actually, it's just slow but it works. What do you mean exactly?
localhost:9050
No matter if u create a fake account or not, the security is virtually non existent if someone wants to find you.
Won't ever recommend Session for all the drama regarding Oxen, Lokinet and the rugpull that took place. Do not trust that messanger at all, SimpleX or XMPP/Jabber with OMEMO.
Even if SimpleX is very immature at the moment we recommend the community to keep an eye on it for its Tor proxy support and the possibility to self-host nodes over Tor.
Signal is probably better. In fact there's little speculation in my opinion otherwise. Especially after Signal basically told the FBI they couldn't provide information on someone they were trying to learn about because said information "didn't exist."
However I ultimately think no centralized messaging app is ideal. GPL licensed or not. The centralization aspect is the same issue I have with VPNs. The idea of consolidation seems counterintuitive to privacy when dispersion makes more since. Gajim (or methods like it) seems far superior.
Their encryption protocol OMEMO is top tier as well. Like any messaging app that's worth your time, Gajim can also be routed through Tor. Unless we're talking about a messaging app that communicates only inside the Tor network through onions (beta ideas of this exist like Ricochet) Gajim is the best.
You have misunderstood what I have written.
I have not recommended Signal I have recommended its protocol and protocols based off of it a good example is OMEMO. Telegram made their own protocol called MTProto and MTProto 2.
Note that Edward Snowden actually says not to use Telegram too, and that is saying something.
https://www.hackread.com/snowden-explains-why-telegram-messenger-is-unsafe/
https://anonhq.com/edward-snowden-warns-whatever-dont-use-telegram-messenger-app/
This is why they get caught.
I don't say it's good way to go, but as said /u/Zunero, seller can be protected on his own, if buyer don't know how to protect themself, this is not the problem of seller.
Telegram is easy to use and enough for run buisness, you can use secret chat, tor proxy and create private group for community. if you want to use PGP, you can also. Add a VPN on top of this, tell me where is the security issue ?
Any good vendor will also care about the OpSec of his customers. Not only because this increases the vendors reputation but also because you want to keep your customers happy. You can easily just not use this obvious honeypot and keep your customer base both happy and safe. This isn't some fight between the vendor and the customer.
keep enjoying bohemia lol.. you fucking idiots are mostly just repeating dogma and shooting from the hip.