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TikZ - How can I draw a line through a point on a line, with the new line perpendicular to the old line?

enter image description here

This reply, while theoretically correct and probably quite sound and working, not related to the topic. It already has 3 upvotes. How should one deal with this, if at all?

I do not "hang around" SX a lot but I've noticed on some subsites anyway: that ideas/concepts of alternative software, which was not mentioned by the op, suddenly gets many upvotes. So, mods, should one flag it or rather ignore it?

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    rather ignore it :) Related; meta.tex.stackexchange.com/questions/3452 – percusse Sep 12 '14 at 13:31
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    There may be a reason for upvotes for that answer 1. the user is well known for his PSTricks (just for fun ) compact codes at tex.sx 2.Also since people like simple,crisp and fast codes. wait for some time you may have an answer of your choice. – texenthusiast Sep 12 '14 at 13:47
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    Summarising that link as I understand it: "as long as it's clear about using an alternative approach, and answers the 'big picture' question then it is fine" – Joseph Wright Sep 12 '14 at 13:49
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    @texenthusiast I intend to choose my code as the solution. I mean it's practically and most certainly the solution Jake would have posted if he had wanted to (exact reasons not really important now). I get the nbit about the "being known". There was also Qrrrbwdfskdjll... in regards to very skillful solutions who apparently stopped in December '13. – henry Sep 12 '14 at 14:12
  • @percusse Alright, will do. Not that there is some "intended" harm when other skilled users post their answers anyway. – henry Sep 12 '14 at 14:13
  • I once saw a list of (all) the different names, is this list still around somewhere? – Johannes_B Sep 12 '14 at 17:43
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    @Johannes_B: Only users with rep > 10k can see the list. – kiss my armpit Sep 12 '14 at 18:39
  • Herbert is 18. :) – Paulo Cereda Sep 12 '14 at 19:11
  • Oh... that makes sense... didn't think of that. (yes I know he wrote the package or something along the lines of deep involvement). Well then, glad it got cleared up. :) His age... I think you are lying. :P – henry Sep 12 '14 at 19:20
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As none answers this question and based on the given comments above, here the summary.

  • As long as the answer shows an alternative approach to solve the problem, it is fine.
  • Don't abuse the flag button. Instead, just ignore it by optionally clicking the up vote button.
  • no PSTricks fun in this answer? :( – Nico Boni Sep 13 '14 at 10:18
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    @dcmst: Upvoting is the best way to ignore. :-) – kiss my armpit Sep 13 '14 at 10:59

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