We all know that there are. a lot of people the telegram because they don't have any friends understood the related questions on their investment or in cryptocurrency so this is the thing they usually visit just to ask questions but still this is the platform which is having a lot of scammers with their projects because they know there are a lot of newbies right there.
For me I hate when suddenly I get added to a group without my knowledge for a scam ICO or IEO
As long as someone has your telegram account/username, they will add you as they wish so if you suspect someone is doing that to you. Block them.
This is not true. You can also restrict people who can add you up to groups on Telegram; I'll try and write out the process: "settings>privacy and security>groups>'who can add me to groups' (you select as you desire, best to choose contacts only)>there is also an option there to add exceptions, that's you can include contacts you do not/want to add you notwithstanding"
Thanks for this information because right now I'm having struggle with the number of groups invited me on their projects and I want to remove all those because it's too much annoying for me.
That is also my problem, a person can add me on a telegram group even i did not ask for it, every hour i joined a new telegram group, all i do is delete every telegram that i joined in.
You can also report this group first before blocking them, some members are adding you to these channels they made it their business to add members without permission, I think we need to create a thread about telegram channels that's doing this to increase memberships, this is unethical and groups that do that are potential scammers.
Right now the report is nothing and if you are trying to block those channels you can still make a trouble because after a few days there are another groups invited you and it's too much hassle to block them its better to go the same thing according to the quoted above.