I don’t think Rully Soelaiman (arena) cheating.
you might think badly about this account. This person is working as a lecturer in ITS. This person is
OSN counselor and learner to IMSO in computer olympic.
This is a bit off-topic but don’t know where else to go to get it noticed.
This user22 has been submitting the same solution for PIEK repeatedly during the entire night. Can’t be a judge on whether that was a bug or some monkey business, but it severely skewed the stats for the problem as well as his profile, not to mention sucking resources off the SPOJ servers. Please disqualify the duplicate solutions as they seem to have went into thousands by now.
Edit: The user above submitted the code 1500+ times during 3 days. Now there’s another one4, probably also botting as I can see 6-7 submissions being processed simultaneously, clogging the server. This needs to be sorted out.
10 months later
Indonesian high schoolers probably copying a solution from one another. This has been going for a long while and seriously disturbed the score in some of the less popular problems, here they’re quite blatant:
More are submitting8 as I’m typing this.
Chances are they get problems assigned as part of their course but even if in principle they solve individually, what we’re getting in the end is a swarm of groupthink solutions distorting the scoring. I also remember some ACing using both school and private accounts, something I can’t find example of after the DPA rendered the site unsearchable.
5 months later
8 months later
Kacper Bąk12 wants to get a good job in IT so he shows us how to mirror Zobayer’s repository, several problems a minute. Can’t WA with this clever approach, obviously, in fact he’s the quintessential “AC in 1 go” coder, unless he presses the wrong language button when submitting. Any start-ups watching, you better run and hire this guy right now, he’ll provide a solution to any problem as long as someone else had already coded it!
17 days later
Here’s another with a phenomenal submission and AC rate raju_1910.
2 months later
And another abhineelnandi3.
4 months later
Here’s another, who is currently solving problems in alphabetical order of their problem code.
edit: after much hard copying’n’pasting, s/he’s reached Z, and is now ranked #76.
Another user who likes to solve problems in alphabetical order - arrakis3, and ranked #36 (edit, now at #33.)
17 days later
Here are six more with suspicious success rates, all attending the Gokaraju Rangaraju Institute of Engineering and Technology.
www.spoj.com/users/telugu_akila/6 64 problems solved in two days
www.spoj.com/users/induriharini/5 70 problems solved in two days
www.spoj.com/users/glaxmipranavi/2 54 problems solved in two days
www.spoj.com/users/lakshmi1212/2 48 problems solved in one day
www.spoj.com/users/deepikajavvaji/1
www.spoj.com/users/abhibachu9/2
and more
edit: added some more
19 days later
3 months later
There are people from Marri Lakshmi Reddy college who are making over 60-70 submissions a day and seem to be cheating from each other. Here are the usernames : @varshitha_06, @swetha37, @shivani_2001, @akanksha_varma, @sowmya_1_2. Please look into them and ban them if malpractice is found.
1 year later
3 months later
We have a genius who has risen through the ranks to the No. 2 spot inside a month. In five pages of submission history, there’s not a single wrong answer. Either he hides them, or doesn’t make any. Mighty suspicious, I’d say.
edit: I withdraw my ridiculous allegation!
Not necessary. Please for example look to this: https://www.spoj.com/status/DRAGON,arena/11
And his submissions are not minutes after minutes but rather day after day or year after year 
I agree not necessarily. Perhaps he/she had recently unticked the option to Remove me from the user ranking.
2 months later
For one problem I realised many people have been using my library to submit solutions to the problem. Now if I submit for the same problem will I be called a cheater because I have submitted after them ?
There should be some clear guidelines to what is cheating and what is not.
Say If you read a paper and implement it yourself it won’t be termed cheating as per my understanding but if you find a library corresponding to the paper and use it directly will it be called cheating ? There may be many other people using the same library, so is the first person safe from cheating allegations but the following persons are not ?
10 months later
Hi mods, I’ve noticed some heavy cheaters
crowdforces1
rayaseiren
hard2kill
crowdforces18 is now on rank #4 worldwide, solving 350+ problems in a week.
Please ban them.