:fing26:IP's get reused a lot. Think of any office with 50 employees behind a single public IP, each with at least one personal Twitter that they occasionally check (not even on the more extreme end of reasonable possibilities). Would Twitter ban those 50 accounts sharing this IP? No way.
Generally, after creation you should use same ip/proxy for one account. If you can't assign one specific ip/proxy to each account then its better to open them on same ip...
When you get login to one account using different ips/proxies, it makes you suspicious ...
Hence, either assign a specific ip/proxy to each account or login using same ip..
(I have twitter and other accounts, if anyone need then contact me)